Remove unnecessary reference to use_runner_v2 experiment in x-lang examples and documentation

[chamikaramj]

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[ihji]

LGTM. Thanks.

[chamikaramj]

Thanks.

[chamikaramj]

Run Python PreCommit

[chamikaramj]

Run Website PreCommit

[chamikaramj]

Run Python_PVR_Flink PreCommit

[codecov]

Codecov Report

Merging #22376 (033c304) into master (4821e03) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #22376      +/-   ##
==========================================
- Coverage   74.17%   74.17%   -0.01%     
==========================================
  Files         706      706              
  Lines       93190    93229      +39     
==========================================
+ Hits        69121    69149      +28     
- Misses      22801    22812      +11     
  Partials     1268     1268              

Flag	Coverage Δ
python	83.53% <ø> (-0.01%)	⬇️

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

Impacted Files	Coverage Δ
...ython/apache_beam/examples/kafkataxi/kafka_taxi.py	0.00% <ø> (ø)
sdks/python/apache_beam/examples/sql_taxi.py	0.00% <ø> (ø)
...python/apache_beam/examples/wordcount_xlang_sql.py	0.00% <ø> (ø)
sdks/python/apache_beam/utils/interactive_utils.py	95.12% <0.00%> (-2.44%)	⬇️
...python/apache_beam/runners/worker/worker_status.py	77.53% <0.00%> (-2.18%)	⬇️
...ks/python/apache_beam/runners/worker/sdk_worker.py	88.62% <0.00%> (-0.48%)	⬇️
.../runners/portability/fn_api_runner/translations.py	92.65% <0.00%> (-0.34%)	⬇️
...eam/runners/interactive/interactive_environment.py	91.71% <0.00%> (-0.31%)	⬇️
sdks/python/apache_beam/transforms/util.py	96.06% <0.00%> (-0.16%)	⬇️
...hon/apache_beam/runners/worker/bundle_processor.py	93.54% <0.00%> (-0.13%)	⬇️
... and 7 more

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[chamikaramj]

Thanks.