MAGETWO-50790: Remove Updater Injection from CE unit and integration tests bootstrap

- removed update reference from Magento unit tests

Author: Ivan Gavryshko

dev/tests/unit/phpunit.xml.dist

@@ -17,7 +17,6 @@
         <directory suffix="Test.php">../../../lib/internal/*/*/Test/Unit</directory>
         <directory suffix="Test.php">../../../lib/internal/*/*/*/Test/Unit</directory>
         <directory suffix="Test.php">../../../setup/src/*/*/Test/Unit</directory>
-        <directory suffix="Test.php">../../../update/app/code/*/*/Test/Unit</directory>
         <directory suffix="Test.php">../../../vendor/*/module-*/Test/Unit</directory>
         <directory suffix="Test.php">../../../vendor/*/framework/Test/Unit</directory>
         <directory suffix="Test.php">../../../vendor/*/framework/*/Test/Unit</directory>