[7.x] Unmute more memory-related tests after the fix in #68542

[danhermann]

Relates to #68542

[droberts195]

I think there was a problem with the workaround, so these tests will probably fail if unmuted. The Java security manager blocks reading /proc/meminfo - see for example https://gradle-enterprise.elastic.co/s/6qtcnglfzfdvg/tests/:server:test/org.elasticsearch.monitor.os.OsProbeTests/testGetTotalMemoryOnDebian8#1

[danhermann]

I think there was a problem with the workaround, so these tests will probably fail if unmuted. The Java security manager blocks reading /proc/meminfo - see for example https://gradle-enterprise.elastic.co/s/6qtcnglfzfdvg/tests/:server:test/org.elasticsearch.monitor.os.OsProbeTests/testGetTotalMemoryOnDebian8#1

Ah, thanks for pointing that out, @droberts195.

[danhermann]

@droberts195, I opened #68742 to address the security manager issue.

[danhermann]

#68742 has been merged and the previously failing test on the debian8 platform passed, so I think this PR is clear to be reviewed.

[probakowski]

LGTM, one minor nit

[probakowski]

These import changes are not needed for this change, right?

[danhermann]

The commit that muted these tests (09f823b) moved the import statements out of the standard ordering that we use, so I just restored the original standard ordering as part of the un-mute.