Remove MR review summaries table

.rubocop_todo/gitlab/bounded_contexts.yml

.rubocop_todo/style/inline_disable_annotation.yml

...ackfill_merge_request_review_llm_summaries_project_id.yml

...ocs/deleted_tables/merge_request_review_llm_summaries.yml

...backfill_merge_request_review_llm_summaries_project_id.rb

...migrate/20240705090747_remove_review_summaries_user_fk.rb

...rate/20240705090811_remove_review_summaries_project_fk.rb

...rate/20240705091219_remove_review_summaries_mr_diff_fk.rb

...t_migrate/20240705091240_remove_review_summaries_table.rb

db/schema_migrations/20240703134651

db/schema_migrations/20240705090747

db/schema_migrations/20240705090811

db/schema_migrations/20240705091219

db/schema_migrations/20240705091240

db/structure.sql

ee/app/models/ee/merge_request_diff.rb

ee/app/models/ee/review.rb

ee/app/models/merge_request/review_llm_summary.rb

ee/spec/factories/merge_request_review_llm_summary.rb

ee/spec/models/ee/review_spec.rb