Remove deprecated static mock

tests/Util/DateTimeFormatMockTrait.php

@@ -1,58 +0,0 @@
-<?php
-/**
- * @copyright Copyright (C) 2010-2022, the Friendica project
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
-namespace Friendica\Test\Util;
-
-use Friendica\Util\DateTimeFormat;
-use Mockery\MockInterface;
-
-trait DateTimeFormatMockTrait
-{
-	/**
-	 * @var MockInterface The mocking interface of Friendica\Database\DBA
-	 */
-	private $dtfMock;
-
-	public function mockUtcNow($time, $times = null)
-	{
-		if (!isset($this->dtfMock)) {
-			$this->dtfMock = \Mockery::mock('alias:'. DateTimeFormat::class);
-		}
-
-		$this->dtfMock
-			->shouldReceive('utcNow')
-			->andReturn($time)
-			->times($times);
-	}
-
-	public function mockUtc($input, $time, $times = null)
-	{
-		if (!isset($this->dtfMock)) {
-			$this->dtfMock = \Mockery::mock('alias:' . DateTimeFormat::class);
-		}
-
-		$this->dtfMock
-			->shouldReceive('utc')
-			->with($input)
-			->andReturn($time)
-			->times($times);
-	}
-}