fix: remove custom timeout and retry settings (#365)

* fix: remove custom timeout and retry settings

Author: hengfengli

google-cloud-spanner/src/main/java/com/google/cloud/spanner/SpannerOptions.java

@@ -19,12 +19,9 @@
 import com.google.api.core.ApiFunction;
 import com.google.api.gax.core.ExecutorProvider;
 import com.google.api.gax.grpc.GrpcInterceptorProvider;
-import com.google.api.gax.longrunning.OperationSnapshot;
 import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
 import com.google.api.gax.retrying.RetrySettings;
-import com.google.api.gax.rpc.StatusCode;
 import com.google.api.gax.rpc.TransportChannelProvider;
-import com.google.api.gax.rpc.UnaryCallSettings;
 import com.google.cloud.NoCredentials;
 import com.google.cloud.ServiceDefaults;
 import com.google.cloud.ServiceOptions;
@@ -47,9 +44,6 @@
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
-import com.google.spanner.admin.database.v1.CreateBackupRequest;
-import com.google.spanner.admin.database.v1.CreateDatabaseRequest;
-import com.google.spanner.admin.database.v1.RestoreDatabaseRequest;
 import com.google.spanner.v1.ExecuteSqlRequest.QueryOptions;
 import io.grpc.CallCredentials;
 import io.grpc.CompressorRegistry;
@@ -331,47 +325,15 @@ private Builder() {
                   .setRpcTimeoutMultiplier(1.5)
                   .setTotalTimeout(Duration.ofHours(48L))
                   .build());
-      RetrySettings longRunningRetrySettings =
-          RetrySettings.newBuilder()
-              .setInitialRpcTimeout(Duration.ofSeconds(60L))
-              .setMaxRpcTimeout(Duration.ofSeconds(600L))
-              .setInitialRetryDelay(Duration.ofSeconds(20L))
-              .setMaxRetryDelay(Duration.ofSeconds(45L))
-              .setRetryDelayMultiplier(1.5)
-              .setRpcTimeoutMultiplier(1.5)
-              .setTotalTimeout(Duration.ofHours(48L))
-              .build();
       databaseAdminStubSettingsBuilder
           .createDatabaseOperationSettings()
-          .setPollingAlgorithm(longRunningPollingAlgorithm)
-          .setInitialCallSettings(
-              UnaryCallSettings
-                  .<CreateDatabaseRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
-                  .setRetrySettings(longRunningRetrySettings)
-                  .build());
+          .setPollingAlgorithm(longRunningPollingAlgorithm);
       databaseAdminStubSettingsBuilder
           .createBackupOperationSettings()
-          .setPollingAlgorithm(longRunningPollingAlgorithm)
-          .setInitialCallSettings(
-              UnaryCallSettings
-                  .<CreateBackupRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
-                  .setRetrySettings(longRunningRetrySettings)
-                  .build());
+          .setPollingAlgorithm(longRunningPollingAlgorithm);
       databaseAdminStubSettingsBuilder
           .restoreDatabaseOperationSettings()
-          .setPollingAlgorithm(longRunningPollingAlgorithm)
-          .setInitialCallSettings(
-              UnaryCallSettings
-                  .<RestoreDatabaseRequest, OperationSnapshot>newUnaryCallSettingsBuilder()
-                  .setRetrySettings(longRunningRetrySettings)
-                  .build());
-      databaseAdminStubSettingsBuilder
-          .deleteBackupSettings()
-          .setRetrySettings(longRunningRetrySettings);
-      databaseAdminStubSettingsBuilder
-          .updateBackupSettings()
-          .setRetrySettings(longRunningRetrySettings)
-          .setRetryableCodes(StatusCode.Code.DEADLINE_EXCEEDED, StatusCode.Code.UNAVAILABLE);
+          .setPollingAlgorithm(longRunningPollingAlgorithm);
     }
 
     Builder(SpannerOptions options) {