Remove global sidebar styles

app/assets/stylesheets/framework/animations.scss

@@ -116,7 +116,7 @@
 }
 
 .btn,
-.side-nav-toggle {
+.global-dropdown-toggle {
   @include transition(background-color, border-color, color, box-shadow);
 }
 

app/assets/stylesheets/framework/header.scss

@@ -101,7 +101,7 @@ header {
       }
     }
 
-    .side-nav-toggle {
+    .global-dropdown-toggle {
       position: absolute;
       left: -10px;
       margin: 7px 0;

app/assets/stylesheets/framework/sidebar.scss

-.page-with-sidebar {
-  padding-bottom: 25px;
-  transition: padding $sidebar-transition-duration;
-
-  &.page-sidebar-pinned {
-    .sidebar-wrapper {
-      box-shadow: none;
-    }
-  }
-
-  .sidebar-wrapper {
-    position: fixed;
-    top: 0;
-    bottom: 0;
-    left: 0;
-    height: 100%;
-    width: 0;
-    overflow: hidden;
-    transition: width $sidebar-transition-duration;
-    box-shadow: 2px 0 16px 0 $black-transparent;
-  }
-}
-
-.sidebar-wrapper {
-  z-index: 1000;
-  background: $gray-light;
-
-  .nicescroll-rails-hr {
-    // TODO: Figure out why nicescroll doesn't hide horizontal bar
-    display: none!important;
-  }
-}
-
 .content-wrapper {
   width: 100%;
   transition: padding $sidebar-transition-duration;
@@ -47,38 +14,6 @@
   }
 }
 
-.sidebar-action-buttons {
-  width: $sidebar_width;
-  position: absolute;
-  top: 0;
-  left: 0;
-  min-height: 50px;
-  padding: 5px 0;
-  font-size: 18px;
-  line-height: 30px;
-
-  .toggle-nav-collapse {
-    left: 0;
-  }
-
-  .pin-nav-btn {
-    right: 0;
-    display: none;
-
-    @media (min-width: $sidebar-breakpoint) {
-      display: block;
-    }
-
-    .fa {
-      transition: transform .15s;
-
-      .page-sidebar-pinned & {
-        transform: rotate(90deg);
-      }
-    }
-  }
-}
-
 .nav-header-btn {
   padding: 10px $gl-sidebar-padding;
   color: inherit;
@@ -94,59 +29,16 @@
   }
 }
 
-.page-sidebar-expanded {
-  .sidebar-wrapper {
-    width: $sidebar_width;
-  }
-}
-
-.page-sidebar-pinned {
-  .content-wrapper,
-  .layout-nav {
-    @media (min-width: $sidebar-breakpoint) {
-      padding-left: $sidebar_width;
-    }
-  }
-
-  .merge-request-tabs-holder.affix {
-    @media (min-width: $sidebar-breakpoint) {
-      left: $sidebar_width;
-    }
-  }
-
-  &.right-sidebar-expanded {
-    .line-resolve-all-container {
-      @media (min-width: $sidebar-breakpoint) {
-        display: none;
-      }
-    }
-  }
-}
-
-header.header-sidebar-pinned {
-  @media (min-width: $sidebar-breakpoint) {
-    padding-left: ($sidebar_width + $gl-padding);
-
-    .side-nav-toggle {
-      display: none;
-    }
-
-    .header-content {
-      padding-left: 0;
-    }
-  }
-}
-
 .right-sidebar-collapsed {
   padding-right: 0;
 
   @media (min-width: $screen-sm-min) {
     .content-wrapper {
-      padding-right: $sidebar_collapsed_width;
+      padding-right: $gutter_collapsed_width;
     }
 
     .merge-request-tabs-holder.affix {
-      right: $sidebar_collapsed_width;
+      right: $gutter_collapsed_width;
     }
   }
 
@@ -164,7 +56,7 @@ header.header-sidebar-pinned {
 
   @media (min-width: $screen-sm-min) and (max-width: $screen-sm-max) {
     &:not(.build-sidebar):not(.wiki-sidebar) {
-      padding-right: $sidebar_collapsed_width;
+      padding-right: $gutter_collapsed_width;
     }
   }
 
@@ -178,12 +70,12 @@ header.header-sidebar-pinned {
     }
 
     &.with-overlay .merge-request-tabs-holder.affix {
-      right: $sidebar_collapsed_width;
+      right: $gutter_collapsed_width;
     }
   }
 
   &.with-overlay {
-    padding-right: $sidebar_collapsed_width;
+    padding-right: $gutter_collapsed_width;
   }
 }
 

app/assets/stylesheets/framework/variables.scss

 /*
  * Layout
  */
-$sidebar_collapsed_width: 62px;
-$sidebar_width: 220px;
 $gutter_collapsed_width: 62px;
 $gutter_width: 290px;
 $gutter_inner_width: 250px;

app/assets/stylesheets/pages/issuable.scss

@@ -253,11 +253,11 @@
       display: block;
     }
 
-    width: $sidebar_collapsed_width;
+    width: $gutter_collapsed_width;
     padding-top: 0;
 
     .block {
-      width: $sidebar_collapsed_width - 2px;
+      width: $gutter_collapsed_width - 2px;
       margin-left: -19px;
       padding: 15px 0 0;
       border-bottom: none;

app/assets/stylesheets/print.scss

@@ -31,7 +31,6 @@ nav.navbar-collapse.collapse,
 .blob-commit-info,
 .file-title,
 .file-holder,
-.sidebar-wrapper,
 .nav,
 .btn,
 ul.notes-form,