Remove fix_comment_scroll feature flag

Changelog: fixed

app/assets/javascripts/issues/show/index.js

@@ -77,9 +77,7 @@ export function initIssueApp(issueData, store) {
 
   const { fullPath } = el.dataset;
 
-  if (gon?.features?.fixCommentScroll) {
-    scrollToTargetOnResize();
-  }
+  scrollToTargetOnResize();
 
   bootstrapApollo({ ...issueState, issueType: el.dataset.issueType });
 

app/controllers/projects/issues_controller.rb

@@ -49,7 +49,6 @@ class Projects::IssuesController < Projects::ApplicationController
     push_frontend_feature_flag(:confidential_notes, project&.group, default_enabled: :yaml)
     push_frontend_feature_flag(:issue_assignees_widget, project, default_enabled: :yaml)
     push_frontend_feature_flag(:paginated_issue_discussions, project, default_enabled: :yaml)
-    push_frontend_feature_flag(:fix_comment_scroll, project, default_enabled: :yaml)
     push_frontend_feature_flag(:work_items, project&.group, default_enabled: :yaml)
   end
 

config/feature_flags/development/fix_comment_scroll.yml

----
-name: fix_comment_scroll
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/76340
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/349638
-milestone: '14.7'
-type: development
-group: group::project management
-default_enabled: false