Remove redundant let in reviewers spec

Issue: https://gitlab.com/gitlab-org/gitlab/-/issues/296998

ee/spec/features/merge_request/user_edits_multiple_reviewers_mr_spec.rb

@@ -32,14 +32,12 @@ RSpec.describe 'Merge request > User edits MR with multiple reviewers' do
         expect(page).to have_content(rule_name)
       end
     end
-  end
 
     context 'when reviewer_approval_rules feature flag off' do
-    let(:rule_name) { 'some-custom-rule' }
-    let!(:mr_rule) { create(:approval_merge_request_rule, merge_request: merge_request, users: [user], name: rule_name, approvals_required: 1 )}
-
       before do
         stub_feature_flags(reviewer_approval_rules: false)
+
+        visit edit_project_merge_request_path(target_project, merge_request)
       end
 
       it 'is not shown in reviewer dropdown' do
@@ -51,6 +49,7 @@ RSpec.describe 'Merge request > User edits MR with multiple reviewers' do
         end
       end
     end
+  end
 
   context 'code owner approval rules', :js do
     let(:code_owner_pattern) { '*' }