apply phpcbf formatting

Author: GromNaN

Diff for: src/Session/MongoDbSessionHandler.php

@@ -15,12 +15,7 @@
 use MongoDB\BSON\Binary;
 use MongoDB\BSON\UTCDateTime;
 use MongoDB\Collection;
-use TypeError;
 
-use function assert;
-use function get_debug_type;
-use function is_string;
-use function sprintf;
 use function tap;
 use function time;