[TEST] Mute CircuitBreakerServiceTests.testMemoryBreaker

Relates to #8710
[TEST] wait for all shards to be allocated before IndexStatsTests runs
Docs: Fixed bad link to top-hits agg
[TEST] Move NoMergePolicyProvider into it's own class
[TEST] Ensure that all flushes happen on PeerRecovery tests
Fixing typo

Closes #8713
Remove java facet documentation in master

As we did in reference guide, we need to remove facet java code in master branch.