Remove spotless exclusion for HyperLogLogPlusPlus

[andrross]

The large data tables necessitating this exclusion were refactored away a long time ago.

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: UNSTABLE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/6825/
• CommitID: d5d0a7c
  Please examine the workflow log, locate, and copy-paste the failure below, then iterate to green.
  Is the failure a flaky test unrelated to your change?

[andrross]

#5221

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/6826/
• CommitID: d5d0a7c

[codecov-commenter]

Codecov Report

Merging #5225 (d5d0a7c) into main (831b3a0) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #5225      +/-   ##
============================================
+ Coverage     70.97%   71.03%   +0.05%     
- Complexity    58186    58194       +8     
============================================
  Files          4708     4708              
  Lines        277558   277558              
  Branches      40190    40190              
============================================
+ Hits         197006   197168     +162     
+ Misses        64444    64224     -220     
- Partials      16108    16166      +58     

Impacted Files	Coverage Δ
...arch/aggregations/metrics/HyperLogLogPlusPlus.java	92.48% <100.00%> (-1.74%)	⬇️
...ch/transport/ReceiveTimeoutTransportException.java	50.00% <0.00%> (-50.00%)	⬇️
...adcast/BroadcastShardOperationFailedException.java	55.55% <0.00%> (-44.45%)	⬇️
.../admin/cluster/reroute/ClusterRerouteResponse.java	60.00% <0.00%> (-40.00%)	⬇️
...h/action/ingest/SimulateDocumentVerboseResult.java	60.71% <0.00%> (-39.29%)	⬇️
...luster/routing/allocation/RoutingExplanations.java	62.06% <0.00%> (-37.94%)	⬇️
...regations/metrics/AbstractHyperLogLogPlusPlus.java	51.72% <0.00%> (-37.94%)	⬇️
...ations/bucket/terms/heuristic/PercentageScore.java	17.39% <0.00%> (-34.79%)	⬇️
...arch/search/aggregations/pipeline/SimpleModel.java	38.46% <0.00%> (-30.77%)	⬇️
...cluster/routing/allocation/RerouteExplanation.java	70.00% <0.00%> (-30.00%)	⬇️
... and 459 more

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