[SqlClient] Remove support for old DB conventions

[alanwest]

This PR prepares the SqlClient instrumentation to release a release candidate.

It removes support for the old DB conventions. Only the stable conventions will be emitted.

[codecov]

Codecov Report

❌ Patch coverage is 95.45455% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 71.19%. Comparing base (48d18f6) to head (dc480c1).
⚠️ Report is 23 commits behind head on main.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...qlClient/Implementation/SqlActivitySourceHelper.cs	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3592      +/-   ##
==========================================
- Coverage   71.22%   71.19%   -0.03%     
==========================================
  Files         442      442              
  Lines       17516    17489      -27     
==========================================
- Hits        12475    12451      -24     
+ Misses       5041     5038       -3     

Flag	Coverage Δ
unittests-Instrumentation.SqlClient	87.19% <95.45%> (-0.11%)	⬇️

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

Files with missing lines	Coverage Δ
...ient/Implementation/SqlClientDiagnosticListener.cs	88.23% <100.00%> (-0.08%)	⬇️
...ent/Implementation/SqlEventSourceListener.netfx.cs	79.80% <100.00%> (-1.28%)	⬇️
....SqlClient/SqlClientTraceInstrumentationOptions.cs	100.00% <ø> (ø)
...qlClient/Implementation/SqlActivitySourceHelper.cs	94.54% <90.00%> (+3.24%)	⬆️

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[Kielek]

I am fine with merging iit now, but before release, it will be great to solve #3574 fisrt.

[alanwest]

I am fine with merging iit now, but before release, it will be great to solve #3574 fisrt.

Agreed. Merging now. If there's some progress on #3574 in the coming week or so maybe we can get an RC out near the end of the year.

[stevejgordon]

@alanwest and @Kielek - I've solved all but one edge case in the SQL processor. Working on that this morning, with a hope to get a PR in today/tomorrow.

[stevejgordon]

#3627 fixes the handling of escaped identifiers.