Remove the `ForkedProjectLink` model

This removes the `ForkedProjectLink` model that has been replaced by
the `ForkNetworkMember` and `ForkNetwork` combination. All existing
relations have been adjusted to use these new models.

The `forked_project_link` table has been dropped.

The "Forks" count on the admin dashboard has been updated to count all
`ForkNetworkMember` rows and deduct the number of `ForkNetwork`
rows. This is because now the "root-project" of a fork network also
has a `ForkNetworkMember` row. This count could become inaccurate when
the root of a fork network is deleted.

1 files changed, 5 insertions, 7 deletions

diff --git a/spec/workers/rebase_worker_spec.rb b/spec/workers/rebase_worker_spec.rb
index 20aff020dbb..936b9deaecc 100644
--- a/spec/workers/rebase_worker_spec.rb
+++ b/spec/workers/rebase_worker_spec.rb
@@ -1,25 +1,23 @@
 require 'spec_helper'
 
 describe RebaseWorker, '#perform' do
+  include ProjectForksHelper
+
   context 'when rebasing an MR from a fork where upstream has protected branches' do
     let(:upstream_project) { create(:project, :repository) }
-    let(:fork_project) { create(:project, :repository) }
+    let(:forked_project) { fork_project(upstream_project, nil, repository: true) }
 
     let(:merge_request) do
       create(:merge_request,
-             source_project: fork_project,
+             source_project: forked_project,
              source_branch: 'feature_conflict',
              target_project: upstream_project,
              target_branch: 'master')
     end
 
-    before do
-      create(:forked_project_link, forked_to_project: fork_project, forked_from_project: upstream_project)
-    end
-
     it 'sets the correct project for running hooks' do
       expect(MergeRequests::RebaseService)
-        .to receive(:new).with(fork_project, merge_request.author).and_call_original
+        .to receive(:new).with(forked_project, merge_request.author).and_call_original
 
       subject.perform(merge_request, merge_request.author)
     end