Disable TAP tests of pg_receivewal for ZLIB on Windows

Disable TAP tests of pg_receivewal for ZLIB on Windows

This reverts commit 91d395f, to avoid running those tests on Windows.
The tests are globally stable across all buildfarm members, except
fairywren (crash of pg_receivewal) and bowerdird (SIGBREAK preventing
the buildfarm run to complete).  Those errors are rather strange, as
other hosts with very similar characteristics are able to run those
tests without breaking a sweat.

For now, disable those tests on Windows to turn back the buildfarm to
green.

Per discussion with Andrew Dunstan.

Discussion: https://postgr.es/m/9040d5ed-6462-66a4-07ac-2923785ae563@dunslane.net