Remove unused CSS

* The `gender-and-channel` class isn't use since commit e3063cd24f
* The `first-comment` class added in commit e5fb90f954 was never used
* The `additional-info` class added in commit d47ce39b37 was never used
* The `title-quote` class isn't use since commit f317514258
* The `big-number` class added in commit aa1ed87725 was never used
* The `big-number-stat` class isn't used since commit cf32dcd6d5
* The `budget-investment-amount` and `budget-investment-description`
classes added in commit 4ade8325d7 were never used
* The `debate-quiz` class isn't use since commit d679c1eb79
* The `enquiries-list` class isn't use since commit 6aa96c4471
* The `investment-project-content` class isn't use since commit d0b8fef6b3
* The `leave-comment` class isn't use since commit ff6285d114
* The `poll-question-show` class isn't use since commit 8277e3cc2b
* The `questions-callout` class isn't use since commit ddf8d5f811
* The `budget-investments-inner` class isn't used since commit c6a9ffc19
* The `map-attributtion` class isn't use since commit 5a09b79da4
* The `postfix` class isn't use since commit 3752f3a53b
* The `translation-locale` added in commit a6e8fecc16 was never used
* The `changes-link`, `comment-advice`, `show-comments` and `comment-votes-number`
classes aren't use since commit d679c1eb79

app/assets/stylesheets/community.scss

@@ -30,12 +30,4 @@
   ul li {
     margin-bottom: 0;
   }
-
-  .comments {
-
-    .first-comment {
-      margin-bottom: $line-height;
-      margin-top: $line-height;
-    }
-  }
 }

app/assets/stylesheets/dashboard.scss

@@ -560,10 +560,6 @@
       display: inline;
     }
 
-    .title-quote {
-      display: inline-block;
-    }
-
     .poster-footer {
       border-left: 2px solid $border;
       color: $text-medium;
@@ -646,11 +642,6 @@
       font-size: rem-calc(45);
       margin-bottom: $line-height * 2;
     }
-
-    .title-quote {
-      display: inline-block;
-      font-size: rem-calc(50);
-    }
   }
 
   .poster-footer {

app/assets/stylesheets/layout.scss

@@ -153,10 +153,6 @@ button,
   color: $color-alert;
 }
 
-.postfix.button {
-  padding: 0;
-}
-
 .clear {
   clear: both;
 }
@@ -1017,10 +1013,6 @@ form {
   }
 }
 
-.translation-locale {
-  padding-top: $line-height;
-}
-
 // 07. Callout
 // -----------
 
@@ -1286,22 +1278,12 @@ form {
       width: 14px;
     }
   }
-
-  .map-attributtion {
-    height: auto;
-    visibility: visible;
-  }
 }
 
 .map-marker {
   visibility: hidden;
 }
 
-.map-attributtion {
-  height: 0;
-  visibility: hidden;
-}
-
 // 10. Officials levels
 // --------------------
 
@@ -1959,8 +1941,7 @@ table {
   }
 
   .debates-inner,
-  .proposals-inner,
+  .proposals-inner {
-  .budget-investments-inner {
     max-height: rem-calc(350);
 
     @include breakpoint(small) {
@@ -2000,8 +1981,7 @@ table {
     }
 
     .debates-inner,
-    .proposals-inner,
+    .proposals-inner {
-    .budget-investments-inner {
       border: 1px solid $border;
       margin-right: $line-height;
       max-height: rem-calc(500);

app/assets/stylesheets/legislation_process.scss

@@ -556,19 +556,6 @@
 
     .calc-text {
       border-right: 0;
-
-      .show-comments {
-        background: #fafafa;
-        border: 1px solid $border;
-        margin-bottom: rem-calc(16);
-        padding: rem-calc(4) rem-calc(40) rem-calc(4) rem-calc(4);
-        width: 105%;
-
-        p {
-          margin-bottom: 0;
-        }
-      }
-
     }
 
     .calc-comments {
@@ -627,26 +614,6 @@
           margin-top: rem-calc(16);
           padding-bottom: rem-calc(64);
 
-          .comment-advice {
-            background: #dfdfdf;
-            border-left: 1px solid #d0d0d0;
-            border-right: 1px solid #d0d0d0;
-            border-top: 1px solid #d0d0d0;
-            display: inline-block;
-            font-size: $small-font-size;
-            padding: rem-calc(8);
-            width: 100%;
-
-            .icon-proposals {
-              color: #838383;
-            }
-
-            a {
-              color: #87a3b9;
-              text-decoration: underline;
-            }
-          }
-
           textarea {
             border-bottom: 1px solid #d0d0d0;
             border-left: 1px solid #d0d0d0;
@@ -710,16 +677,6 @@
               color: #838383;
               display: inline-block;
               float: right;
-
-              .comment-votes-number {
-                display: inline-block;
-                margin-right: rem-calc(4);
-
-                &::after {
-                  content: "|";
-                  margin-left: rem-calc(4);
-                }
-              }
             }
           }
         }
@@ -746,37 +703,6 @@
       }
     }
   }
-
-  .changes-link {
-    display: block;
-    font-size: $small-font-size;
-    margin-left: rem-calc(16);
-
-    @include breakpoint(medium) {
-      display: inline-block;
-    }
-
-    a {
-
-      span {
-        text-decoration: underline;
-      }
-
-      .icon-external {
-        color: #999;
-        line-height: 0;
-        margin-left: rem-calc(8);
-        text-decoration: none;
-        vertical-align: sub;
-      }
-
-      &:active,
-      &:focus,
-      &:hover {
-        text-decoration: none;
-      }
-    }
-  }
 }
 
 // 07. Legislation comments

app/assets/stylesheets/pages.scss

@@ -60,10 +60,6 @@
     @include brand-color;
   }
 
-  .additional-info {
-    margin-bottom: $line-height;
-  }
-
   a:not(.button) {
     text-decoration: underline;
   }

app/assets/stylesheets/participation.scss

@@ -161,10 +161,8 @@
 
 .debate-show,
 .proposal-show,
-.poll-question-show,
 .budget-investment-show,
 .polls-show,
-.debate-quiz,
 .draft-panels,
 .debate-questions,
 .communities-show,
@@ -305,11 +303,6 @@
     @include supports;
   }
 
-  .leave-comment {
-    display: inline-block;
-    margin-top: rem-calc(24);
-  }
-
   .tags {
     @extend %tags;
   }
@@ -499,7 +492,6 @@
 
   .debate-content,
   .proposal-content,
-  .investment-project-content,
   .budget-investment-content {
     margin: 0;
     min-height: rem-calc(180);
@@ -560,8 +552,7 @@
 
   .debate-description,
   .proposal-description,
-  .investment-project-description,
+  .investment-project-description {
-  .budget-investment-description {
     font-size: rem-calc(13);
     height: rem-calc(72);
     line-height: $line-height;
@@ -652,8 +643,7 @@
 
   .supports {
 
-    .investment-project-amount,
+    .investment-project-amount {
-    .budget-investment-amount {
       color: $budget;
       font-size: rem-calc(20);
       font-weight: bold;
@@ -875,8 +865,7 @@
 // ------------
 
 .featured-debates,
-.featured-proposals,
+.featured-proposals {
-.enquiries-list {
   padding: calc($line-height / 2) 0;
 
   @include breakpoint(medium) {
@@ -1158,19 +1147,7 @@
   }
 }
 
-.big-number {
-  color: $budget;
-  font-size: rem-calc(60);
-  line-height: rem-calc(120);
-
-  @include breakpoint(large) {
-    font-size: rem-calc(90);
-    line-height: rem-calc(240);
-  }
-}
-
 .ballot {
-
   h2,
   h3 {
     font-weight: normal;
@@ -1278,16 +1255,6 @@
     @include full-width-background;
     background: $highlight;
   }
-
-  .big-number-stat {
-    font-size: rem-calc(60);
-    font-weight: bold;
-    line-height: rem-calc(60);
-
-    &.budget {
-      color: $budget;
-    }
-  }
 }
 
 // 07. Proposals successful
@@ -1470,10 +1437,6 @@
   position: relative;
 }
 
-.questions-callout {
-  font-size: $base-font-size;
-}
-
 .section-title-divider {
   border-bottom: 1px solid #eee;
   margin: $line-height 0;

app/assets/stylesheets/stats.scss

@@ -107,70 +107,6 @@
     border-bottom-left-radius: rem-calc(20);
     border-top-left-radius: rem-calc(20);
   }
-
-  .gender-and-channel {
-
-    thead,
-    tbody {
-      border: 0;
-    }
-
-    thead,
-    tr,
-    th {
-      background-color: transparent;
-    }
-
-    td,
-    th {
-      text-align: center;
-      text-transform: uppercase;
-
-      &::before {
-        display: inline-block;
-        transform: scale(0.6);
-        vertical-align: middle;
-      }
-    }
-
-    th {
-      font-size: rem-calc(21);
-      font-weight: bold;
-
-      &.gender {
-        opacity: 0;
-      }
-
-      &.web::before {
-        content: image-url("stats_web.png");
-      }
-
-      &.booth::before {
-        content: image-url("stats_booth.png");
-      }
-
-      &.mail::before {
-        content: image-url("stats_mail.png");
-      }
-    }
-
-    td {
-
-      &.gender {
-        font-size: rem-calc(21);
-        font-weight: bold;
-        text-align: left;
-      }
-
-      &.male::before {
-        content: image-url("stats_man.png");
-      }
-
-      &.female::before {
-        content: image-url("stats_woman.png");
-      }
-    }
-  }
 }
 
 .stats-numbers {