Revert "Load review requested MRs in assignee filter"

This reverts commit 550f2982.

app/controllers/concerns/issuable_collections.rb

@@ -150,7 +150,7 @@ module IssuableCollections
                                   common_attributes + [:project, project: :namespace]
                                 when 'MergeRequest'
                                   common_attributes + [
-                                    :target_project, :latest_merge_request_diff, :approvals, :approved_by_users, :reviewers,
+                                    :target_project, :latest_merge_request_diff, :approvals, :approved_by_users,
                                     source_project: :route, head_pipeline: :project, target_project: :namespace
                                   ]
                                 end

app/finders/issuable_finder.rb

@@ -399,7 +399,7 @@ class IssuableFinder
     elsif params.filter_by_any_assignee?
       items.assigned
     elsif params.assignee
-      items_assigned_to(items, params.assignee)
+      items.assigned_to(params.assignee)
     elsif params.assignee_id? || params.assignee_username? # assignee not found
       items.none
     else
@@ -407,10 +407,6 @@ class IssuableFinder
     end
   end
 
-  def items_assigned_to(items, user)
-    items.assigned_to(user)
-  end
-
   def by_negated_assignee(items)
     # We want CE users to be able to say "Issues not assigned to either PersonA nor PersonB"
     if not_params.assignees.present?

app/finders/merge_requests_finder.rb

@@ -164,10 +164,6 @@ class MergeRequestsFinder < IssuableFinder
   end
   # rubocop: enable CodeReuse/Finder
 
-  def items_assigned_to(items, user)
-    MergeRequest.from_union([super, items.reviewer_assigned_to(user)])
-  end
-
   def by_deployments(items)
     # Until this feature flag is enabled permanently, we retain the old
     # filtering behaviour/code.

app/models/merge_request.rb

@@ -302,10 +302,6 @@ class MergeRequest < ApplicationRecord
     includes(:metrics)
   end
 
-  scope :reviewer_assigned_to, ->(user) do
-    where("EXISTS (SELECT TRUE FROM merge_request_reviewers WHERE user_id = ? AND merge_request_id = merge_requests.id)", user.id)
-  end
-
   after_save :keep_around_commit, unless: :importing?
 
   alias_attribute :project, :target_project

spec/features/dashboard/merge_requests_spec.rb

@@ -52,29 +52,20 @@ RSpec.describe 'Dashboard Merge Requests' do
   end
 
   context 'merge requests exist' do
-    let_it_be(:author_user) { create(:user) }
     let(:label) { create(:label) }
 
     let!(:assigned_merge_request) do
       create(:merge_request,
         assignees: [current_user],
         source_project: project,
-        author: author_user)
-    end
-
-    let!(:review_requested_merge_request) do
-      create(:merge_request,
-        reviewers: [current_user],
-        source_branch: 'review',
-        source_project: project,
-        author: author_user)
+        author: create(:user))
     end
 
     let!(:assigned_merge_request_from_fork) do
       create(:merge_request,
               source_branch: 'markdown', assignees: [current_user],
               target_project: public_project, source_project: forked_project,
-              author: author_user)
+              author: create(:user))
     end
 
     let!(:authored_merge_request) do
@@ -103,7 +94,7 @@ RSpec.describe 'Dashboard Merge Requests' do
       create(:merge_request,
               source_branch: 'fix',
               source_project: project,
-              author: author_user)
+              author: create(:user))
     end
 
     before do
@@ -120,10 +111,6 @@ RSpec.describe 'Dashboard Merge Requests' do
       expect(page).not_to have_content(labeled_merge_request.title)
     end
 
-    it 'shows review requested merge requests' do
-      expect(page).to have_content(review_requested_merge_request.title)
-    end
-
     it 'shows authored merge requests', :js do
       reset_filters
       input_filtered_search("author:=#{current_user.to_reference}")

spec/finders/merge_requests_finder_spec.rb

@@ -333,8 +333,6 @@ RSpec.describe MergeRequestsFinder do
       end
 
       context 'assignee filtering' do
-        let_it_be(:user3) { create(:user) }
-
         let(:issuables) { described_class.new(user, params).execute }
 
         it_behaves_like 'assignee ID filter' do
@@ -353,6 +351,7 @@ RSpec.describe MergeRequestsFinder do
             merge_request3.assignees = [user2, user3]
           end
 
+          let_it_be(:user3) { create(:user) }
           let(:params) { { assignee_username: [user2.username, user3.username] } }
           let(:expected_issuables) { [merge_request3] }
         end
@@ -367,6 +366,7 @@ RSpec.describe MergeRequestsFinder do
         end
 
         it_behaves_like 'no assignee filter' do
+          let_it_be(:user3) { create(:user) }
           let(:expected_issuables) { [merge_request4, merge_request5] }
         end
 
@@ -374,31 +374,6 @@ RSpec.describe MergeRequestsFinder do
           let(:expected_issuables) { [merge_request1, merge_request2, merge_request3] }
         end
 
-        context 'with just reviewers' do
-          it_behaves_like 'assignee username filter' do
-            before do
-              merge_request4.reviewers = [user3]
-              merge_request4.assignees = []
-            end
-
-            let(:params) { { assignee_username: [user3.username] } }
-            let(:expected_issuables) { [merge_request4] }
-          end
-        end
-
-        context 'with an additional reviewer' do
-          it_behaves_like 'assignee username filter' do
-            before do
-              merge_request3.assignees = [user3]
-              merge_request4.reviewers = [user3]
-            end
-
-            let(:params) { { assignee_username: [user3.username] } }
-            let(:expected_issuables) { [merge_request3, merge_request4] }
-          end
-        end
-      end
-
         context 'filtering by group milestone' do
           let(:group_milestone) { create(:milestone, group: group) }
 
@@ -425,6 +400,7 @@ RSpec.describe MergeRequestsFinder do
             end
           end
         end
+      end
 
       context 'filtering by created_at/updated_at' do
         let(:new_project) { create(:project, forked_from_project: project1) }