cmd/coordinator/buildongce: fix tests
cmd/coordinator/buildongce: fix tests

The second section of the template was removed from the default
kubeConfig and the Staging environment now has 32 cores instead of
16.

After this the only failing tests are in the devapp package and fixed
by CL 34928.

Fixes golang/go#18769.

Change-Id: I719ee8368ce85ae6837b6df915bfa69753e24417
Reviewed-on: https://go-review.googlesource.com/35630
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

golang/build,golang/build,golang/build,golang/build