Remove gtest duplicate in deps
Remove gtest duplicate in deps

It was added in [1] by mistake as it's already present [2].

[1] https://review.rdoproject.org/r/c/rdoinfo/+/37109
[2] https://github.com/redhat-openstack/rdoinfo/blob/master/deps.yml#L1935#L1937

Change-Id: Ib2f5bccaec0361a5156184dcf50e935b63e8ef91

redhat-openstack/rdoinfo