Remove feature flag geo_merge_request_diff_verification

doc/administration/geo/replication/datatypes.md

@@ -200,7 +200,7 @@ successfully, you must replicate their data using some other means.
 |[Project designs repository](../../../user/project/issues/design_management.md)                                | **Yes** (12.7)                                                          | [No](https://gitlab.com/gitlab-org/gitlab/-/issues/32467)                  | No                                                                            | Designs also require replication of LFS objects and Uploads. |
 |[Package Registry](../../../user/packages/package_registry/index.md)                                           | **Yes** (13.2)                                                          | [**Yes**](#limitation-of-verification-for-files-in-object-storage) (13.10) | Via Object Storage provider if supported. Native Geo support (Beta).          | Behind feature flag `geo_package_file_replication`, enabled by default. |
 |[Versioned Terraform State](../../terraform_state.md)                                                          | **Yes** (13.5)                                                          | [**Yes**](#limitation-of-verification-for-files-in-object-storage) (13.12) | Via Object Storage provider if supported. Native Geo support (Beta).          | Replication is behind the feature flag `geo_terraform_state_version_replication`, enabled by default. Verification was behind the feature flag `geo_terraform_state_version_verification`, which was removed in 14.0. |
-|[External merge request diffs](../../merge_request_diffs.md)                                                   | **Yes** (13.5)                                                          | **Yes** (14.6)                                                             | Via Object Storage provider if supported. Native Geo support (Beta).          | Replication is behind the feature flag `geo_merge_request_diff_replication`, enabled by default. Verification is behind the feature flag `geo_merge_request_diff_verification`, enabled by default in 14.6.|
+|[External merge request diffs](../../merge_request_diffs.md)                                                   | **Yes** (13.5)                                                          | **Yes** (14.6)                                                             | Via Object Storage provider if supported. Native Geo support (Beta).          | Replication is behind the feature flag `geo_merge_request_diff_replication`, enabled by default. Verification was behind the feature flag `geo_merge_request_diff_verification`, removed in 14.7.|
 |[Versioned snippets](../../../user/snippets.md#versioned-snippets)                                             | [**Yes** (13.7)](https://gitlab.com/groups/gitlab-org/-/epics/2809)     | [**Yes** (14.2)](https://gitlab.com/groups/gitlab-org/-/epics/2810)        | No                                                                            | Verification was implemented behind the feature flag `geo_snippet_repository_verification` in 13.11, and the feature flag was removed in 14.2. |
 |[GitLab Pages](../../pages/index.md)                                                                           | [**Yes** (14.3)](https://gitlab.com/groups/gitlab-org/-/epics/589)      | [**Yes**](#limitation-of-verification-for-files-in-object-storage) (14.6)  | Via Object Storage provider if supported. Native Geo support (Beta).          | Behind feature flag `geo_pages_deployment_replication`, enabled by default. Verification is behind the feature flag `geo_pages_deployment_verification`, enabled by default in 14.6. |
 |[Server-side Git hooks](../../server_hooks.md)                                                                 | [Not planned](https://gitlab.com/groups/gitlab-org/-/epics/1867)        | No                                                                         | No                                                                            | Not planned because of current implementation complexity, low customer interest, and availability of alternatives to hooks. |

ee/app/replicators/geo/merge_request_diff_replicator.rb

@@ -27,7 +27,7 @@ module Geo
 
     override :verification_feature_flag_enabled?
     def self.verification_feature_flag_enabled?
-      Feature.enabled?(:geo_merge_request_diff_verification, default_enabled: :yaml)
+      true
     end
   end
 end

ee/config/feature_flags/development/geo_merge_request_diff_verification.yml

----
-name: geo_merge_request_diff_verification
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/63309/
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/330023
-milestone: '14.0'
-type: development
-group: group::geo
-default_enabled: true