Remove deprecated nameResolverFactory method.

[wu-sheng]

• If this pull request closes/resolves/fixes an existing issue, replace the issue number. Closes #.
• Update the CHANGES log.

Remove deprecated gRPC method, io.grpc.ManagedChannelBuilder#nameResolverFactory. See gRPC-java 7133 for more details.

[codecov]

Codecov Report

Merging #7132 (b63d506) into master (002f4c2) will decrease coverage by 9.47%.
The diff coverage is 46.37%.

❗ Current head b63d506 differs from pull request most recent head 75fb485. Consider uploading reports for the commit 75fb485 to get more accurate results

@@             Coverage Diff              @@
##             master    #7132      +/-   ##
============================================
- Coverage     50.35%   40.88%   -9.48%     
- Complexity     2692     3200     +508     
============================================
  Files           740     1024     +284     
  Lines         18265    25932    +7667     
  Branches       1766     2545     +779     
============================================
+ Hits           9198    10603    +1405     
- Misses         8337    14421    +6084     
- Partials        730      908     +178     

Impacted Files	Coverage Δ
...walking/apm/commons/datacarrier/buffer/Buffer.java	71.42% <ø> (+71.42%)	⬆️
...commons/datacarrier/common/AtomicRangeInteger.java	50.00% <ø> (ø)
...datacarrier/consumer/MultipleChannelsConsumer.java	77.08% <ø> (ø)
...tacarrier/partition/ProducerThreadPartitioner.java	0.00% <ø> (ø)
.../apache/skywalking/apm/util/ConfigInitializer.java	64.04% <0.00%> (+8.48%)	⬆️
.../commands/executor/ProfileTaskCommandExecutor.java	7.69% <0.00%> (ø)
.../apm/agent/core/context/ids/GlobalIdGenerator.java	68.18% <0.00%> (+5.68%)	⬆️
...ent/core/context/status/ExceptionCheckContext.java	0.00% <0.00%> (ø)
...alking/apm/agent/core/context/tag/AbstractTag.java	35.00% <0.00%> (-28.64%)	⬇️
.../agent/core/context/trace/AbstractTracingSpan.java	39.09% <0.00%> (-1.48%)	⬇️
... and 864 more

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