MB-9662:  remove google-perftools gperftools from COMPONENTS-GROMMIT

Change-Id: I212f279da8e7df3d00c04be9c01c127e930966f8
Reviewed-on: http://review.couchbase.org/30816
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>