[Remote Store] Change remote store integ tests to use remote store for replication

[sachinpkale]

Description

• Currently, we have remote store integ tests where replication is node-to-node.
• As we have introduced support of using remote store for replication, we will no longer support node-to-node replication when remote store is enabled.
• This change makes sure to use remote store for replication for all the integ tests related to remote store and removes redundant tests.

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)

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[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/20474/
• CommitID: fd22a1b
  Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/20475/
• CommitID: 32cc3c5

[codecov]

Codecov Report

Merging #8768 (32cc3c5) into main (57d5e90) will increase coverage by 0.17%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #8768      +/-   ##
============================================
+ Coverage     70.76%   70.93%   +0.17%     
- Complexity    57111    57196      +85     
============================================
  Files          4771     4771              
  Lines        270241   270241              
  Branches      39500    39500              
============================================
+ Hits         191237   191702     +465     
+ Misses        62846    62416     -430     
+ Partials      16158    16123      -35     

see 488 files with indirect coverage changes

[ashking94]

We have multiple Integ tests like CreateRemoteIndexIT, CreateRemoteIndexTranslogDisabledIT which are also written for remote store features. We might want to have the changes done here as well.

[sachinpkale]

We have multiple Integ tests like CreateRemoteIndexIT, CreateRemoteIndexTranslogDisabledIT which are also written for remote store features. We might want to have the changes done here as well.

The other integ tests do not use replication (for example CreateRemoteIndexIT just checks if index with remote settings can be created as per the expectation). Enabling segrep experimental feature flag would have no impact on these tests.