Revert "[DBMON-2989] report sql obfuscation error count (#15990)"

[lu-zhengda]

What does this PR do?

[INCIDENT-24014] This reverts commit 5ba30fc.

Motivation

We've noticed increased memory usage with databases with high cardinality, for example, Postgres with exploded pg_stat_statements, due to this change.

Additional Notes

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Changelog entries must be created for modifications to shipped code
• Add the qa/skip-qa label if the PR doesn't need to be tested during QA.

[codecov]

Codecov Report

Merging #16439 (68e2cdc) into master (ed0b328) will increase coverage by 0.10%.
Report is 6 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

Flag	Coverage Δ
activemq	?
cassandra	?
confluent_platform	?
hive	?
hivemq	?
hudi	?
ignite	?
jboss_wildfly	?
kafka	?
mysql	87.41% <ø> (+0.05%)	⬆️
postgres	92.35% <ø> (+0.07%)	⬆️
presto	?
solr	?
sqlserver	89.85% <ø> (+0.01%)	⬆️
tomcat	?
weblogic	?

Flags with carried forward coverage won't be shown. Click here to find out more.

[github-actions]

Test Results

     48 files       48 suites   1h 19m 29s ⏱️
   676 tests    662 ✔️   14 💤 0 ❌
5 990 runs  5 648 ✔️ 342 💤 0 ❌

Results for commit 68e2cdc.

♻️ This comment has been updated with latest results.

[iliakur]

Hmm, should we drop this metric from metadata.csv as well, or does it still get reported elsewhere?

If we're dropping it from metadata.csv, I'd argue that this warrants a major version bump as the change becomes essentially breaking for customers that use this metric.

[lu-zhengda]

@iliakur this metric dd.postgres|mysql|sqlserver.obfuscation.error was considered for internal debugging uses and was not included in the metadata.csv. They are newly added for 7.50 but not being released yet.