Merge branch...

Merge branch '229696-migrate-deprecatedmodal2-to-glmodal-in-app-assets-javascripts-vue_shared-components-gl_modal' into 'master'

Remove unused shared gl_modal.vue component

See merge request gitlab-org/gitlab!47390

app/assets/javascripts/vue_shared/components/gl_modal.vue

-<script>
-// This file was only introduced to not break master and shall be delete soon.
-import DeprecatedModal2 from '~/vue_shared/components/deprecated_modal_2.vue';
-
-export default DeprecatedModal2;
-</script>