Code review comment for ~epics-core/epics-base/+git/Com:make-simple

This shows up in the travis build anyway.

https://travis-ci.org/mdavidsaver/epics-base/jobs/475161570

> They don't prevent Base from building though.

... because it comes from the configure/RELEASE parsing mechanics. Specifically:

> RELEASE_TOPS := $(shell $(CONVERTRELEASE) -T $(TOP) releaseTops)

This will be empty when building Base itself, so we can just skip it.