Update tests/phpunit/tests/url.php

Remove $GLOBALS['post'] = $orig_post;

Co-authored-by: Weston Ruter <[email protected]>

Author: ramonjd

tests/phpunit/tests/url.php

@@ -631,7 +631,5 @@ public function test_get_adjacent_post_with_identical_dates() {
 		// Next should be empty (no later posts).
 		$next = get_adjacent_post( false, '', false );
 		$this->assertSame( '', $next );
-
-		$GLOBALS['post'] = $orig_post;
 	}
 }