Removing unnecessary extension.

components/device-mgt/org.wso2.carbon.device.mgt.core/src/test/java/org/wso2/carbon/device/mgt/core/DeviceManagementRepositoryTests.java

@@ -27,12 +27,11 @@ import org.wso2.carbon.device.mgt.core.common.TestDataHolder;
 import org.wso2.carbon.device.mgt.core.internal.DeviceManagementDataHolder;
 import org.wso2.carbon.device.mgt.core.task.impl.DeviceTaskManagerServiceImpl;
 
-public class DeviceManagementRepositoryTests extends BaseDeviceManagementTest{
+public class DeviceManagementRepositoryTests{
 
 	private DeviceManagementPluginRepository repository;
 
 	@BeforeClass
-	@Override
 	public void init() throws Exception {
 		this.repository = new DeviceManagementPluginRepository();
 		DeviceManagementDataHolder.getInstance().setDeviceTaskManagerService(new DeviceTaskManagerServiceImpl());