Cleanup HLC code

[navina]

Follow-up for #11017 where we removed support for high/stream level consumers in Apache Pinot. This PR makes the following changes:

• Deletes the kafka and pulsar stream level connectors
• Removes HLRealtimeSegmentDataManager and support for it in RealtimeTableDataManager
• Made pinot-spi changes in StreamConsumerFactory#createStreamLevelConsumer to throw UnsupportedException by default

[codecov-commenter]

Codecov Report

Merging #11326 (1560d7b) into master (d6b1b4f) will increase coverage by 68.39%.
Report is 7 commits behind head on master.
The diff coverage is 77.77%.

@@              Coverage Diff              @@
##             master   #11326       +/-   ##
=============================================
+ Coverage      0.11%   68.50%   +68.39%     
- Complexity        0     6536     +6536     
=============================================
  Files          2239     2233        -6     
  Lines        120424   119927      -497     
  Branches      18215    18183       -32     
=============================================
+ Hits            137    82161    +82024     
+ Misses       120267    31931    -88336     
- Partials         20     5835     +5815     

Flag	Coverage Δ
integration1	21.04% <66.66%> (?)
integration1temurin11	?
integration1temurin17	?
integration1temurin20	?
integration2	25.64% <72.22%> (?)
integration2temurin11	?
integration2temurin17	?
integration2temurin20	?
java-11	68.39% <77.77%> (?)
java-17	68.30% <77.77%> (?)
java-20	68.28% <77.77%> (?)
temurin	68.50% <77.77%> (?)
unittests1	67.33% <16.66%> (?)
unittests1temurin17	?
unittests1temurin20	?
unittests2	14.66% <0.00%> (?)
unittests2temurin11	?
unittests2temurin17	?
unittests2temurin20	?

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

Files Changed	Coverage Δ
...mmon/request/context/OrderByExpressionContext.java	70.37% <ø> (+70.37%)	⬆️
...ot/plugin/stream/kafka20/KafkaConsumerFactory.java	100.00% <ø> (+100.00%)	⬆️
.../plugin/stream/kinesis/KinesisConsumerFactory.java	0.00% <ø> (ø)
...ot/plugin/stream/pulsar/PulsarConsumerFactory.java	33.33% <ø> (+33.33%)	⬆️
...apache/pinot/spi/stream/StreamConsumerFactory.java	83.33% <0.00%> (+83.33%)	⬆️
...uery/SelectionPartiallyOrderedByDescOperation.java	80.00% <50.00%> (+80.00%)	⬆️
...ata/manager/realtime/RealtimeTableDataManager.java	70.64% <86.66%> (+70.64%)	⬆️

... and 1941 files with indirect coverage changes

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[xiangfu0]

LGTM