Cleanup feature flag gitaly_tags_finder

Contributes to https://gitlab.com/gitlab-org/gitlab/-/issues/339741

Remove FF `gitaly_tags_finder` and deprecated code

Changelog: other

app/models/repository.rb

@@ -732,9 +732,7 @@ class Repository
   end
 
   def tags_sorted_by(value, pagination_params = nil)
-    return raw_repository.tags(sort_by: value, pagination_params: pagination_params) if Feature.enabled?(:tags_finder_gitaly, project, default_enabled: :yaml)
-
-    tags_ruby_sort(value)
+    raw_repository.tags(sort_by: value, pagination_params: pagination_params)
   end
 
   # Params:
@@ -1170,34 +1168,6 @@ class Repository
     @request_store_cache ||= Gitlab::RepositoryCache.new(self, backend: Gitlab::SafeRequestStore)
   end
 
-  # Deprecated: https://gitlab.com/gitlab-org/gitlab/-/issues/339741
-  def tags_ruby_sort(value)
-    case value
-    when 'name_asc'
-      VersionSorter.sort(tags) { |tag| tag.name }
-    when 'name_desc'
-      VersionSorter.rsort(tags) { |tag| tag.name }
-    when 'updated_desc'
-      tags_sorted_by_committed_date.reverse
-    when 'updated_asc'
-      tags_sorted_by_committed_date
-    else
-      tags
-    end
-  end
-
-  # Deprecated: https://gitlab.com/gitlab-org/gitlab/-/issues/339741
-  def tags_sorted_by_committed_date
-    # Annotated tags can point to any object (e.g. a blob), but generally
-    # tags point to a commit. If we don't have a commit, then just default
-    # to putting the tag at the end of the list.
-    default = Time.current
-
-    tags.sort_by do |tag|
-      tag.dereferenced_target&.committed_date || default
-    end
-  end
-
   def repository_event(event, tags = {})
     Gitlab::Metrics.add_event(event, tags)
   end

config/feature_flags/development/tags_finder_gitaly.yml

----
-name: tags_finder_gitaly
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/69101
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/339741
-milestone: '14.3'
-type: development
-group: group::source code
-default_enabled: true

spec/models/repository_spec.rb

@@ -68,22 +68,11 @@ RSpec.describe Repository do
 
   describe '#tags_sorted_by' do
     let(:tags_to_compare) { %w[v1.0.0 v1.1.0] }
-    let(:feature_flag) { true }
-
-    before do
-      stub_feature_flags(tags_finder_gitaly: feature_flag)
-    end
 
     context 'name_desc' do
       subject { repository.tags_sorted_by('name_desc').map(&:name) & tags_to_compare }
 
       it { is_expected.to eq(['v1.1.0', 'v1.0.0']) }
-
-      context 'when feature flag is disabled' do
-        let(:feature_flag) { false }
-
-        it { is_expected.to eq(['v1.1.0', 'v1.0.0']) }
-      end
     end
 
     context 'name_asc' do
@@ -93,12 +82,6 @@ RSpec.describe Repository do
 
       it { is_expected.to eq(['v1.0.0', 'v1.1.0']) }
 
-      context 'when feature flag is disabled' do
-        let(:feature_flag) { false }
-
-        it { is_expected.to eq(['v1.0.0', 'v1.1.0']) }
-      end
-
       context 'with pagination' do
         context 'with limit' do
           let(:pagination_params) { { limit: 1 } }
@@ -153,24 +136,12 @@ RSpec.describe Repository do
         subject { repository.tags_sorted_by('updated_desc').map(&:name) & (tags_to_compare + [latest_tag]) }
 
         it { is_expected.to eq([latest_tag, 'v1.1.0', 'v1.0.0']) }
-
-        context 'when feature flag is disabled' do
-          let(:feature_flag) { false }
-
-          it { is_expected.to eq([latest_tag, 'v1.1.0', 'v1.0.0']) }
-        end
       end
 
       context 'asc' do
         subject { repository.tags_sorted_by('updated_asc').map(&:name) & (tags_to_compare + [latest_tag]) }
 
         it { is_expected.to eq(['v1.0.0', 'v1.1.0', latest_tag]) }
-
-        context 'when feature flag is disabled' do
-          let(:feature_flag) { false }
-
-          it { is_expected.to eq(['v1.0.0', 'v1.1.0', latest_tag]) }
-        end
       end
 
       context 'annotated tag pointing to a blob' do
@@ -187,12 +158,6 @@ RSpec.describe Repository do
 
         it { is_expected.to eq(['v1.0.0', 'v1.1.0', annotated_tag_name]) }
 
-        context 'when feature flag is disabled' do
-          let(:feature_flag) { false }
-
-          it { is_expected.to eq(['v1.0.0', 'v1.1.0', annotated_tag_name]) }
-        end
-
         after do
           rugged_repo(repository).tags.delete(annotated_tag_name)
         end
@@ -203,12 +168,6 @@ RSpec.describe Repository do
       subject { repository.tags_sorted_by('unknown_desc').map(&:name) & tags_to_compare }
 
       it { is_expected.to eq(['v1.0.0', 'v1.1.0']) }
-
-      context 'when feature flag is disabled' do
-        let(:feature_flag) { false }
-
-        it { is_expected.to eq(['v1.0.0', 'v1.1.0']) }
-      end
     end
   end