4c4712865b
tools/generatepot-rst.sh has an awk filter to drop UUID from POT files,
but it is unnecessary now. It was introduced to strip UUID information
which was added by default in Sphinx <1.3 [1] in openstack-manuals.
Sphinx >=1.3 does not output UUID information by default [2],
so is is no longer needed.
In addition, (g)awk 5.0 or later (adopted in Ubuntu 20.04 or later)
complains the current awk regexp. I think it is the time to drop it
rather than fixing the regexp.
[1] 993647f316
[2] https://www.sphinx-doc.org/en/master/usage/configuration.html#confval-gettext_uuid
Related-Bug: #2035226
Change-Id: I54180d12de0cfdd618f6789b6cf9ec66d3276a40