[Instrumentation.AspNetCore, Instrumentation.Http] Revert support for OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS

[Kielek]

Related to: #1731.

Changes

[Instrumentation.AspNetCore, Instrumentation.Http] Revert support for OTEL_INSTRUMENTATION_HTTP_KNOWN_METHODS
It was introduces as a side effect of the migration to contrib repository in #1707 and #1694

For significant contributions please make sure you have completed the following items:

• [ ] Appropriate CHANGELOG.md updated for non-trivial changes
• [ ] Design discussion issue #
• [ ] Changes in public API reviewed

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.29%. Comparing base (71655ce) to head (05856a6).
Report is 240 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1754      +/-   ##
==========================================
+ Coverage   73.91%   76.29%   +2.37%     
==========================================
  Files         267      298      +31     
  Lines        9615    11622    +2007     
==========================================
+ Hits         7107     8867    +1760     
- Misses       2508     2755     +247     

Flag	Coverage Δ
unittests-Exporter.Geneva	64.47% <ø> (?)
unittests-Exporter.OneCollector	89.72% <ø> (?)
unittests-Extensions	79.33% <ø> (?)
unittests-Instrumentation.AspNet	74.39% <100.00%> (?)
unittests-Instrumentation.AspNetCore	85.27% <100.00%> (?)
unittests-Instrumentation.EventCounters	76.36% <ø> (?)
unittests-Instrumentation.GrpcNetClient	78.78% <ø> (?)
unittests-Instrumentation.Http	81.91% <100.00%> (?)
unittests-Instrumentation.Owin	83.43% <ø> (?)
unittests-Instrumentation.Process	100.00% <ø> (?)
unittests-Instrumentation.Runtime	100.00% <ø> (?)
unittests-Instrumentation.SqlClient	90.90% <ø> (?)
unittests-Instrumentation.StackExchangeRedis	71.00% <ø> (?)
unittests-Instrumentation.Wcf	78.47% <ø> (?)
unittests-PersistentStorage	65.78% <ø> (?)
unittests-ResourceDetectors.Azure	81.53% <ø> (?)
unittests-ResourceDetectors.Host	54.11% <ø> (?)
unittests-ResourceDetectors.ProcessRuntime	76.08% <ø> (?)
unittests-Resources.Gcp	72.54% <ø> (?)
unittests-Resources.Process	81.81% <ø> (?)
unittests-Solution	80.17% <ø> (?)

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

Files	Coverage Δ
...umentation.AspNet/Implementation/HttpInListener.cs	88.46% <100.00%> (+0.14%)	⬆️
...ion.AspNet/Implementation/HttpInMetricsListener.cs	97.36% <100.00%> (-2.64%)	⬇️
...ation.AspNetCore/Implementation/TelemetryHelper.cs	88.88% <100.00%> (ø)
...strumentation.Http/Implementation/HttpTagHelper.cs	100.00% <100.00%> (ø)

... and 279 files with indirect coverage changes

[vishweshbankwar]

LGTM: Please update the PR description as well.