fix: remove duplicated calls to AutoValue builders (#2636)

This change removes duplicate calls to setters in
`gax-java/gax-grpc/src/test/java/com/google/api/gax/grpc/TimeoutTest.java`.

Fixes #2635 ☕️

Co-authored-by: Blake Li <[email protected]>

Author: cushon

gax-java/gax-grpc/src/test/java/com/google/api/gax/grpc/TimeoutTest.java

@@ -199,7 +199,6 @@ public void testNonRetryUnarySettingsWithoutIndividualRpcTimeout() {
             .setMaxAttempts(1)
             .setJittered(true)
             .setRpcTimeoutMultiplier(1.0)
-            .setRpcTimeoutMultiplier(1.0)
             .build();
     CallOptions callOptionsUsed =
         setupUnaryCallable(retrySettings, emptyRetryCodes, defaultCallContext);
@@ -315,7 +314,6 @@ public void testNonRetryServerStreamingSettingsWithoutIndividualRpcTimeout() {
             .setMaxAttempts(1)
             .setJittered(true)
             .setRpcTimeoutMultiplier(1.0)
-            .setRpcTimeoutMultiplier(1.0)
             .build();
     CallOptions callOptionsUsed =
         setupServerStreamingCallable(retrySettings, emptyRetryCodes, defaultCallContext);