Merge branch...

Merge branch '423212-remove-unused-app-assets-javascripts-projects-compare-components-revision_dropdown_legacy-vue' into 'master' 

Remove unused revision_dropdown_legacy.vue

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/130284



Merged-by: Phil Hughes <me@iamphill.com>
Approved-by: Samantha Ming <sming@gitlab.com>
Approved-by: Phil Hughes <me@iamphill.com>
Co-authored-by: Justin Ho Tuan Duong <hduong@gitlab.com>