Remove smoke test, update settings, bump GAX version to 0.3.0

Author: michaelbausor

google-cloud-logging/src/main/java/com/google/cloud/logging/spi/v2/LoggingServiceV2Settings.java

@@ -554,13 +554,13 @@ private static Builder createDefault() {
       builder
           .writeLogEntriesSettings()
           .getBundlingSettingsBuilder()
-          .setElementCountThreshold(100)
-          .setRequestByteThreshold(20480)
-          .setDelayThreshold(Duration.millis(10))
+          .setElementCountThreshold(1000)
+          .setRequestByteThreshold(1048576)
+          .setDelayThreshold(Duration.millis(50))
           .setFlowControlSettings(
               FlowControlSettings.newBuilder()
-                  .setMaxOutstandingElementCount(10000)
-                  .setMaxOutstandingRequestBytes(2048000)
+                  .setMaxOutstandingElementCount(100000)
+                  .setMaxOutstandingRequestBytes(10485760)
                   .setLimitExceededBehavior(LimitExceededBehavior.ThrowException)
                   .build());
       builder

google-cloud-pubsub/src/test/java/com/google/cloud/pubsub/spi/v1/PublisherSmokeTest.java

@@ -92,7 +92,7 @@
     <github.global.server>github</github.global.server>
     <google.auth.version>0.6.0</google.auth.version>
     <grpc.version>1.0.3</grpc.version>
-    <gax.version>0.2.0</gax.version>
+    <gax.version>0.3.0</gax.version>
     <generatedProto.version>0.1.5</generatedProto.version>
     <core.version>0.9.5-alpha-SNAPSHOT</core.version>
     <beta.version>0.9.5-beta-SNAPSHOT</beta.version>