Remove deprecated fa-styles

app/assets/stylesheets/framework/buttons.scss

@@ -264,11 +264,8 @@
     width: 15px;
   }
 
-  svg,
-  .fa {
-    &:not(:last-child) {
-      margin-right: 5px;
-    }
+  svg:not(:last-child) {
+    margin-right: 5px;
   }
 }
 
@@ -358,24 +355,15 @@
 
 .btn-loading {
   &:not(.disabled) {
-    .fa,
     .spinner {
       display: none;
     }
   }
-
-  .fa {
-    margin-right: 5px;
-  }
 }
 
 .btn-build {
   margin-left: 10px;
 
-  i {
-    color: $gl-text-color-secondary;
-  }
-
   svg {
     fill: $gl-text-color-secondary;
   }

app/assets/stylesheets/framework/mixins.scss

@@ -169,7 +169,6 @@
     transition-duration: 0.3s;
   }
 
-  .fa,
   svg {
     position: relative;
     top: 5px;
@@ -361,11 +360,6 @@
   color: $gray-400;
   fill: $gray-400;
 
-  .fa {
-    position: relative;
-    font-size: 16px;
-  }
-
   svg {
     @include btn-svg;
     margin: 0;

app/assets/stylesheets/page_bundles/cycle_analytics.scss

@@ -314,11 +314,6 @@
         vertical-align: top;
         font-weight: $gl-font-weight-normal;
       }
-
-      .fa {
-        color: var(--gray-500, $gray-500);
-        font-size: $code-font-size;
-      }
     }
   }
 

app/assets/stylesheets/pages/pipelines.scss

@@ -46,11 +46,6 @@
       fill: $gl-text-color;
     }
 
-    .fa {
-      font-size: 12px;
-      color: $gl-text-color;
-    }
-
     .commit-sha {
       color: $blue-600;
     }

app/assets/stylesheets/pages/settings.scss

@@ -169,11 +169,6 @@
   .form-check {
     margin-bottom: 10px;
 
-    i.fa {
-      margin: 2px 0;
-      font-size: 20px;
-    }
-
     .option-title {
       font-weight: $gl-font-weight-normal;
       display: inline-block;
@@ -193,7 +188,7 @@
     }
 
     &.disabled {
-      i.fa {
+      svg {
         opacity: 0.5;
       }
 

app/assets/stylesheets/pages/tree.scss

@@ -6,7 +6,6 @@
   .nav-block {
     margin: 16px 0;
 
-    .btn .fa,
     .btn svg {
       color: $gl-text-color-secondary;
     }

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

@@ -55,10 +55,6 @@
   .issue-token-link:focus > & {
     background-color: $border-gray-normal;
   }
-
-  > .fa {
-    line-height: inherit;
-  }
 }
 
 .issue-token-title-standalone {
@@ -90,8 +86,4 @@
     background-color: $border-gray-normal;
     outline: none;
   }
-
-  > .fa {
-    font-size: 0.9em;
-  }
 }