Removing unused namespaces for all PHP files (#280)

Co-authored-by: peter279k <peter279k@gmail.com>

lib/Alcaeus/MongoDbAdapter/TypeInterface.php

@@ -15,8 +15,6 @@
 
 namespace Alcaeus\MongoDbAdapter;
 
-use MongoDB\BSON\Type;
-
 interface TypeInterface
 {
     /**

tests/Alcaeus/MongoDbAdapter/Mongo/MongoGridFSCursorTest.php

@@ -2,7 +2,6 @@
 
 namespace Alcaeus\MongoDbAdapter\Tests\Mongo;
 
-use Alcaeus\MongoDbAdapter\Tests\Constraint\Matches;
 use Alcaeus\MongoDbAdapter\Tests\TestCase;
 use Countable;
 

tests/Alcaeus/MongoDbAdapter/TypeConverterTest.php

@@ -3,7 +3,6 @@
 namespace Alcaeus\MongoDbAdapter\Tests;
 
 use MongoDB\BSON;
-use MongoDB\Driver\Exception;
 use Alcaeus\MongoDbAdapter\TypeConverter;
 use MongoDB\Model\BSONDocument;