Don't delete redundant postdata files #944

Job	Run time
lint	22s
quicktests	41s
coverage	2m 5s
unittests (ubuntu-latest)	2m 11s
unittests (self-hosted, linux, arm64)	3m 8s
unittests (macos-latest)	2m 0s
unittests (self-hosted, macos, arm64)	1m 16s
unittests (windows-latest)	5m 2s
Build postcli (ubuntu-latest)	56s
Build postcli (self-hosted, linux, arm64)	1m 32s
Build postcli (macos-latest)	1m 11s
Build postcli (self-hosted, macos, arm64)	25s
Build postcli (windows-latest)	6m 49s
Publish release	0s
	27m 38s

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