fixes

Change-Id: I2f27c788652c9e5e12ea470355098c73b29ab40a

Author: nicholsl

google-cloud-bigtable/src/main/java/com/google/cloud/bigtable/data/v2/stub/BigtableClientContext.java

@@ -132,9 +132,8 @@ public static BigtableClientContext create(EnhancedBigtableStubSettings settings
                 builder.getAppProfileId(),
                 credentials,
                 builder.getHeaderProvider().getHeaders());
-      } else {
-        channelPrimer = null;
       }
+
       BigtableTransportChannelProvider btTransportProvider =
           BigtableTransportChannelProvider.create(
               (InstantiatingGrpcChannelProvider) transportProvider.build(), channelPrimer);