Delete unused SCSS files

The SCSS files contain classes that were once in markup but
is no longer referenced so they can be deleted

app/assets/stylesheets/_page_specific_files.scss

 @import './pages/branches';
-@import './pages/ci_projects';
 @import './pages/clusters';
 @import './pages/commits';
 @import './pages/deploy_keys';

app/assets/stylesheets/components/design_management/design_version_dropdown.scss

-.design-version-dropdown > button {
-  background: inherit;
-}

app/assets/stylesheets/components/project_list_item.scss

-.project-list-item {
-  &:not(:disabled):not(.disabled) {
-    &:focus,
-    &:active,
-    &:focus:active {
-      outline: none;
-      box-shadow: none;
-    }
-  }
-}
-
-// When housed inside a modal, the edge of each item
-// should extend to the edge of the modal.
-.modal-body {
-  .project-list-item {
-    border-radius: 0;
-    margin-left: -$gl-padding;
-    margin-right: -$gl-padding;
-
-    .project-namespace-name-container {
-      overflow: hidden;
-    }
-  }
-}

app/assets/stylesheets/framework.scss

@@ -9,7 +9,6 @@
 
 @import 'framework/animations';
 @import 'framework/vue_transitions';
-@import 'framework/banner';
 @import 'framework/blocks';
 @import 'framework/buttons';
 @import 'framework/badges';

app/assets/stylesheets/framework/banner.scss

-.banner-callout {
-  display: flex;
-  position: relative;
-  align-items: start;
-
-  .banner-close {
-    position: absolute;
-    top: 10px;
-    right: 10px;
-    opacity: 1;
-
-    .dismiss-icon {
-      color: $gl-text-color;
-      font-size: $gl-font-size;
-    }
-  }
-
-  .banner-graphic {
-    margin: 0 $gl-padding $gl-padding 0;
-  }
-
-  &.banner-non-empty-state {
-    border-bottom: 1px solid $border-color;
-  }
-
-  @include media-breakpoint-down(xs) {
-    justify-content: center;
-    flex-direction: column;
-    align-items: center;
-
-    .banner-title,
-    .banner-buttons {
-      text-align: center;
-    }
-
-    .banner-graphic {
-      margin-left: $gl-padding;
-    }
-  }
-}

app/assets/stylesheets/pages/ci_projects.scss

-.ci-body {
-  .project-title {
-    margin: 0;
-    color: $common-gray-dark;
-    font-size: 20px;
-    line-height: 1.5;
-  }
-
-  .builds,
-  .projects-table {
-    .light {
-      border-color: $border-color;
-    }
-
-    th,
-    td {
-      padding: 10px $gl-padding;
-    }
-
-    td {
-      color: $gl-text-color;
-      vertical-align: middle !important;
-
-      a {
-        font-weight: $gl-font-weight-normal;
-        text-decoration: none;
-      }
-    }
-  }
-
-  .commit-info {
-    .attr-name {
-      margin-right: 5px;
-    }
-
-    pre.commit-message {
-      background: none;
-      padding: 0;
-      border: 0;
-      margin: 20px 0;
-      border-radius: 0;
-    }
-  }
-
-  .loading {
-    font-size: 20px;
-  }
-
-  .ci-charts {
-    fieldset {
-      margin-bottom: 16px;
-    }
-  }
-}

ee/app/assets/stylesheets/framework/dropdowns.scss

-.epic-create-dropdown {
-  .dropdown-menu {
-    padding-left: $gl-padding-top;
-    padding-right: $gl-padding-top;
-  }
-
-  .form-control {
-    width: 100%;
-  }
-
-  .btn-success {
-    display: flex;
-  }
-}
-
-.empty-state {
-  .epic-create-dropdown {
-    display: inline-flex;
-
-    .btn-success {
-      margin: 0;
-      margin-top: $gl-padding-top;
-    }
-  }
-}

ee/app/assets/stylesheets/pages/feature_flags.scss

-$label-blue: #428bca;
-
-.badge-active {
-  color: $white;
-  background-color: $label-blue;
-}
-
-.badge-inactive {
-  color: $white;
-  background-color: $gray-300;
-}
-
-.search-icon-input,
-.clear-search-input {
-  position: absolute;
-  z-index: 10;
-  fill: $gray-300;
-}
-
-.search-icon-input {
-  left: 4px;
-  top: 10px;
-}
-
-.clear-search-input {
-  top: 1px;
-}

ee/app/assets/stylesheets/pages/licenses.scss

-.blank-state-container {
-  margin-top: 35px;
-
-  .trial-description {
-    color: $gray-600;
-  }
-}

ee/app/assets/stylesheets/pages/operations.scss

-.odds-md-pad-right:nth-child(odd) {
-  padding: 0;
-
-  @include media-breakpoint-up(md) {
-    padding-right: $gl-padding-8;
-  }
-}
-
-.evens-md-pad-left:nth-child(even) {
-  padding: 0;
-
-  @include media-breakpoint-up(md) {
-    padding-left: $gl-padding-8;
-  }
-}
-
-.tokenized-input-wrapper {
-  height: auto;
-  padding: 2px $gl-padding-8;
-
-  &.focus,
-  &.focus:hover {
-    border-color: $blue-300;
-    box-shadow: 0 0 4px $dropdown-input-focus-shadow;
-  }
-
-  .tokenized-input {
-    width: auto;
-    border: 0;
-    margin: $gl-bar-padding 0;
-
-    &:focus {
-      outline: none;
-      box-shadow: none;
-    }
-  }
-
-  .input-token {
-    word-break: break-all;
-    background-color: $gray-lighter;
-    margin: $gl-bar-padding 0;
-  }
-
-  .tokenized-input-token-remove {
-    background-color: $gray-normal;
-    margin: $gl-bar-padding $gl-padding-4 $gl-bar-padding 0;
-  }
-}