Direct answering instead of using IssueReader

when question is referring to issue/epic of current page.

Remove ai_prompt_current_page_skip_reader flag

Changelog: performance
EE: true

ee/app/models/ai/ai_resource/epic.rb

@@ -16,13 +16,6 @@ def serialize_for_ai(user:, content_limit:)
       end
 
       def current_page_sentence
-        unless Feature.enabled?(:ai_prompt_current_page_skip_reader)
-          return <<~SENTENCE
-            The user is currently on a page that shows an epic which has a description, comments, etc. Which the user might reference for example as "current", "this" or "that".
-            Here is additional data in <resource></resource> tags about the resource the user is working with:
-          SENTENCE
-        end
-
         <<~SENTENCE
           The user is currently on a page that displays an epic with a description, comments, etc., which the user might refer to, for example, as 'current', 'this' or 'that'. The data is provided in <resource></resource> tags, and if it is sufficient in answering the question, utilize it instead of using the 'EpicReader' tool.
         SENTENCE

ee/app/models/ai/ai_resource/issue.rb

@@ -16,13 +16,6 @@ def serialize_for_ai(user:, content_limit:)
       end
 
       def current_page_sentence
-        unless Feature.enabled?(:ai_prompt_current_page_skip_reader)
-          return <<~SENTENCE
-            The user is currently on a page that shows an issue which has a description, comments, etc.  Which the user might reference for example as "current", "this" or "that".
-            Here is additional data in <resource></resource> tags about the resource the user is working with:
-          SENTENCE
-        end
-
         <<~SENTENCE
           The user is currently on a page that displays an issue with a description, comments, etc., which the user might refer to, for example, as 'current', 'this' or 'that'. The data is provided in <resource></resource> tags, and if it is sufficient in answering the question, utilize it instead of using the 'IssueReader' tool.
         SENTENCE

ee/config/feature_flags/gitlab_com_derisk/ai_prompt_current_page_skip_reader.yml

----
-name: ai_prompt_current_page_skip_reader
-feature_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/450915
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/147474
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/451084
-milestone: '16.10'
-group: group::duo chat
-type: gitlab_com_derisk
-default_enabled: false

ee/spec/models/ai/ai_resource/epic_spec.rb

@@ -27,13 +27,5 @@
     it 'returns prompt' do
       expect(wrapped_epic.current_page_sentence).to include("utilize it instead of using the 'EpicReader' tool")
     end
-
-    context 'when ai_prompt_current_page_skip_reader is off' do
-      it 'returns older prompt' do
-        stub_feature_flags(ai_prompt_current_page_skip_reader: false)
-
-        expect(wrapped_epic.current_page_sentence).to include('Here is additional data in <resource></resource> tags')
-      end
-    end
   end
 end

ee/spec/models/ai/ai_resource/issue_spec.rb

@@ -26,13 +26,5 @@
     it 'returns prompt' do
       expect(wrapped_issue.current_page_sentence).to include("utilize it instead of using the 'IssueReader' tool")
     end
-
-    context 'when ai_prompt_current_page_skip_reader is off' do
-      it 'returns older prompt' do
-        stub_feature_flags(ai_prompt_current_page_skip_reader: false)
-
-        expect(wrapped_issue.current_page_sentence).to include('Here is additional data in <resource></resource>')
-      end
-    end
   end
 end