[Backport 2.x] Remove custom-codecs plugin (#9944)

[andrross]

Backports 5ad472f to 2.x

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Compatibility status:

Checks if related components are compatible with change 6a9e8db

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/neural-search.git]

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.snapshots.DedicatedClusterSnapshotRestoreIT.testIndexDeletionDuringSnapshotCreationInQueue

• URL: https://build.ci.opensearch.org/job/gradle-check/25209/
• CommitID: 6a9e8db
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Merging #9948 (6a9e8db) into 2.x (5505f09) will decrease coverage by 0.05%.
Report is 1 commits behind head on 2.x.
The diff coverage is 81.52%.

@@             Coverage Diff              @@
##                2.x    #9948      +/-   ##
============================================
- Coverage     70.77%   70.73%   -0.05%     
- Complexity    58164    58175      +11     
============================================
  Files          4817     4810       -7     
  Lines        275315   275125     -190     
  Branches      40456    40433      -23     
============================================
- Hits         194867   194606     -261     
- Misses        63724    63874     +150     
+ Partials      16724    16645      -79     

Files Changed	Coverage Δ
.../opensearch/telemetry/tracing/noop/NoopTracer.java	72.72% <ø> (+18.18%)	⬆️
...g/opensearch/transport/nio/NioTransportPlugin.java	25.00% <ø> (ø)
...a/org/opensearch/common/network/NetworkModule.java	92.00% <ø> (ø)
...ain/java/org/opensearch/plugins/NetworkPlugin.java	100.00% <ø> (ø)
...racing/ThreadContextBasedTracerContextStorage.java	93.10% <0.00%> (+20.68%)	⬆️
...etry/tracing/listener/TraceableActionListener.java	58.82% <58.82%> (ø)
.../org/opensearch/telemetry/tracing/SpanBuilder.java	91.66% <66.66%> (+3.43%)	⬆️
...lemetry/tracing/channels/TraceableHttpChannel.java	70.58% <70.58%> (ø)
...lemetry/tracing/channels/TraceableRestChannel.java	84.21% <84.21%> (ø)
...rg/opensearch/telemetry/tracing/DefaultTracer.java	100.00% <100.00%> (+6.45%)	⬆️
... and 7 more

... and 468 files with indirect coverage changes