Merge branch '199526-new-mr-changes-tab-edit-file-button-ui-polish' into 'master'

Resolve "New MR > Changes tab > Edit file button UI polish"

Closes #199526

See merge request gitlab-org/gitlab!24041

app/assets/stylesheets/pages/diff.scss

@@ -63,11 +63,6 @@
       background-color: $gray-normal;
     }
 
-    a,
-    button {
-      color: $gray-700;
-    }
-
     svg {
       vertical-align: middle;
       top: -1px;

changelogs/unreleased/199526-new-mr-changes-tab-edit-file-button-ui-polish.yml

+---
+title: Remove gray color from diff buttons
+merge_request: 24041
+author:
+type: fixed