gax redeclared as imported package name

[jcgregorio]

This CL cb38488 introduced a second 'gax' definition in the file:

https://github.com/GoogleCloudPlatform/google-cloud-go/blob/master/pubsub/service.go#L31

Now importing this package gives:

../../cloud.google.com/go/pubsub/service.go:31: gax redeclared as imported package name previous declaration at ../../cloud.google.com/go/pubsub/service.go:25

[jba]

Probably due to a bad merge.

Fixed by 2cbf161.

[jcgregorio]

Thanks!