Remove duplicated approval endpoints

See https://gitlab.com/gitlab-org/gitlab-ee/issues/10329

ee/lib/ee/api/endpoints.rb

@@ -30,6 +30,7 @@ module EE
         mount ::API::ManagedLicenses
         mount ::API::ProjectApprovals
         mount ::API::Vulnerabilities
+        mount ::API::MergeRequestApprovals
 
         version 'v3', using: :path do
           # Although the following endpoints are kept behind V3 namespace,

ee/lib/ee/api/merge_requests.rb

@@ -6,12 +6,6 @@ module EE
       extend ActiveSupport::Concern
 
       prepended do
-        # For reasons unknown, this API must be mounted before we mount
-        # API::MergeRequests. Mounting this API later on (using
-        # EE::API::Endpoints) for example will result in various merge request
-        # approval related tests failing.
-        ::API::API.mount(::API::MergeRequestApprovals)
-
         helpers do
           params :optional_params_ee do
             optional :approvals_before_merge, type: Integer, desc: 'Number of approvals required before this can be merged'
@@ -26,71 +20,6 @@ module EE
                                     desc: 'Return merge requests which have specified the users with the given IDs as an individual approver'
           end
         end
-
-        params do
-          requires :id, type: String, desc: 'The ID of a project'
-        end
-        resource :projects, requirements: ::API::API::NAMESPACE_OR_PROJECT_REQUIREMENTS do
-          # Get the status of the merge request's approvals
-          #
-          # Parameters:
-          #   id (required)                 - The ID of a project
-          #   merge_request_idd (required)  - IID of MR
-          # Examples:
-          #   GET /projects/:id/merge_requests/:merge_request_iid/approvals
-          #
-          desc "List a merge request's approvals" do
-            success EE::API::Entities::MergeRequestApprovals
-          end
-          get ':id/merge_requests/:merge_request_iid/approvals' do
-            merge_request = find_merge_request_with_access(params[:merge_request_iid])
-
-            present merge_request, with: EE::API::Entities::MergeRequestApprovals, current_user: current_user
-          end
-
-          # Approve a merge request
-          #
-          # Parameters:
-          #   id (required)                 - The ID of a project
-          #   merge_request_iid (required)  - IID of MR
-          # Examples:
-          #   POST /projects/:id/merge_requests/:merge_request_iid/approve
-          #
-          desc 'Approve a merge request' do
-            success EE::API::Entities::MergeRequestApprovals
-          end
-          params do
-            optional :sha, type: String, desc: 'When present, must have the HEAD SHA of the source branch'
-          end
-          post ':id/merge_requests/:merge_request_iid/approve' do
-            merge_request = find_project_merge_request(params[:merge_request_iid])
-
-            unauthorized! unless merge_request.can_approve?(current_user)
-
-            check_sha_param!(params, merge_request)
-
-            ::MergeRequests::ApprovalService
-              .new(user_project, current_user)
-              .execute(merge_request)
-
-            present merge_request, with: EE::API::Entities::MergeRequestApprovals, current_user: current_user
-          end
-
-          desc 'Remove an approval from a merge request' do
-            success EE::API::Entities::MergeRequestApprovals
-          end
-          post ':id/merge_requests/:merge_request_iid/unapprove' do
-            merge_request = find_project_merge_request(params[:merge_request_iid])
-
-            not_found! unless merge_request.has_approved?(current_user)
-
-            ::MergeRequests::RemoveApprovalService
-              .new(user_project, current_user)
-              .execute(merge_request)
-
-            present merge_request, with: EE::API::Entities::MergeRequestApprovals, current_user: current_user
-          end
-        end
       end
     end
   end