feat:support config empty protection.

Author: SkyeBeFreeman

polaris-configuration/polaris-configuration-client/src/test/java/com/tencent/polaris/configuration/client/internal/RemoteConfigFileRepoTest.java

@@ -104,7 +104,6 @@ public void testPullNotFoundConfigFile() {
         ConfigFileResponse configFileResponse = new ConfigFileResponse(ServerCodes.NOT_FOUND_RESOURCE, "", null);
 
         when(configFileFilterChain.execute(any(), any())).thenReturn(configFileResponse);
-        doNothing().when(configFilePersistHandler).asyncDeleteConfigFile(any());
 
         RemoteConfigFileRepo remoteConfigFileRepo =
                 new RemoteConfigFileRepo(sdkContext, configFileLongPollingService, configFileFilterChain, configFileConnector,