[Segment Replication] Revert primary allocation

[dreamer-89]

Reverts primary allocation changes which introduces primary balance setting.

1. aa21b5f
2. f8102d1

[dreamer-89]

Whitesource Security Check is failing due to below dependencies which are not touced as part of this PR. Ignoring this failure.

1. snakeyaml-1.33.jar
2. bc-fips-1.0.2.3.jar

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.smoketest.SmokeTestMultiNodeClientYamlTestSuiteIT.test {yaml=pit/10_basic/Delete all}

• URL: https://build.ci.opensearch.org/job/gradle-check/11581/
• CommitID: 18eab98
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[dreamer-89]

All checks have passed except WhiteSource Security Check which is known to be problematic and not configured correctly. Skipping this check and merging this PR.