Remove the unused, EE-only mv_storage gitlab_projects command

lib/gitlab/shell.rb

@@ -144,20 +144,6 @@ module Gitlab
                                  storage, "#{path}.git", "#{new_path}.git"])
     end
 
-    # Move repository storage
-    #
-    # current_storage - project's current storage path
-    # path - project path with namespace
-    # new_storage - new storage path
-    #
-    # Ex.
-    #   mv_storage("/path/to/storage", "randx/gitlab-ci", "/new/storage/path")
-    #
-    def mv_storage(current_storage, path, new_storage)
-      Gitlab::Utils.system_silent([gitlab_shell_projects_path, 'mv-storage',
-                                   current_storage, "#{path}.git", new_storage])
-    end
-
     # Fork repository to new path
     # forked_from_storage - forked-from project's storage path
     # forked_from_disk_path - project disk path

spec/lib/gitlab/shell_spec.rb

@@ -64,14 +64,6 @@ describe Gitlab::Shell do
       end
     end
 
-    describe '#mv_storage' do
-      it 'executes the command' do
-        expect(Gitlab::Utils).to receive(:system_silent)
-          .with([projects_path, 'mv-storage', 'current/storage', 'project/path.git', 'new/storage'])
-        gitlab_shell.mv_storage('current/storage', 'project/path', 'new/storage')
-      end
-    end
-
     describe '#push_remote_branches' do
       let!(:args) { [projects_path, 'push-branches', 'current/storage', 'project/path.git', 'new/storage', '600', '--force', 'master'] }