Use phpunit's directory feature

Signed-off-by: Joas Schilling <coding@schilljs.com>

autotest.sh

@@ -380,17 +380,9 @@ function execute_tests {
 		echo "No coverage"
 	fi
 
-	if [ -d "$2" ]; then
-	    for f in $(find "$2" -name '*Test.php'); do
-			echo "${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$2" / "$f" "$3"
-			"${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$f" "$3"
-			RESULT=$?
-	    done;
-	else
-	    echo "${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$2" "$3"
-	    "${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$2" "$3"
-		RESULT=$?
-	fi
+	echo "${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$2" "$3"
+	"${PHPUNIT[@]}" --configuration phpunit-autotest.xml $GROUP $COVER --log-junit "autotest-results-$DB.xml" "$2" "$3"
+	RESULT=$?
 
 	if [ "$PRIMARY_STORAGE_CONFIG" == "swift" ] ; then
 		cd ..