Merge branch '467903-follow-up-from-add-spec-for-legacy-key-overrides' into 'master'

Remove unnecessary before block

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156707



Merged-by: Bob Van Landuyt <bob@gitlab.com>
Approved-by: Bob Van Landuyt <bob@gitlab.com>
Co-authored-by: Ash McKenzie <amckenzie@gitlab.com>

spec/lib/gitlab/usage/event_selection_rule_spec.rb

@@ -135,12 +135,10 @@
           end
 
           context 'when key is overridden' do
-            before do
+            it 'uses the legacy key' do
               stub_file_read(Gitlab::UsageDataCounters::HLLRedisCounter::KEY_OVERRIDES_PATH,
                 content: 'an_event-filter:[label:foo]: a_legacy_key')
-            end
 
-            it 'uses the legacy key' do
               expect(event_selection_rule.redis_keys_for_time_frame('7d'))
                .to eq(["{event_counters}_a_legacy_key-2024-21"])
             end