[Hosting] Remove obsolete methods ahead of 1.4.0 release

[CodeBlanch]

If you are reading this because you upgraded to 1.4.0 and your code no longer compiles, sorry! Much discussion went into this and we decided as a group it was the best path forward to not have obsolete code in our first shipped stable version. If you want to get up and running using the old API, you may use the RC version: 1.4.0-rc.4. That version contains everything in 1.4.0 minus this PR removing the old API.

Migration steps

Old style:

services.AddOpenTelemetryTracing(builder => /* configuration */);
services.AddOpenTelemetryMetrics(builder => /* configuration */);

New style:

services.AddOpenTelemetry()
  .WithTracing(builder => /* configuration */)
  .WithMetrics(builder => /* configuration */);

Other APIs...

• Configure is available by casting the provider builder as either IDeferredTracerProviderBuilder or IDeferredMeterProviderBuilder.
• GetServices is now available as ConfigureServices.

Changes

• Removes all the hosting APIs obsoleted in v1.4.0 development.

TODOs

• Appropriate CHANGELOG.md updated for non-trivial changes
• Changes in public API reviewed

[codecov]

Codecov Report

Merging #4071 (5aad68f) into main (bdf1e08) will increase coverage by 0.15%.
The diff coverage is n/a.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4071      +/-   ##
==========================================
+ Coverage   85.55%   85.71%   +0.15%     
==========================================
  Files         291      289       -2     
  Lines       11398    11374      -24     
==========================================
- Hits         9752     9749       -3     
+ Misses       1646     1625      -21     

Impacted Files	Coverage Δ
...ensions.Hosting/OpenTelemetryServicesExtensions.cs	100.00% <ø> (+60.00%)	⬆️
...lementation/SqlClientInstrumentationEventSource.cs	70.83% <0.00%> (-4.17%)	⬇️
src/OpenTelemetry/BatchExportProcessor.cs	82.24% <0.00%> (-1.87%)	⬇️

[github-actions]

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[TimothyMothra]

bump to remove stale

[github-actions]

This PR was marked stale due to lack of activity and will be closed in 7 days. Commenting or Pushing will instruct the bot to automatically remove the label. This bot runs once per day.

[github-actions]

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[alanwest]

🎉 LGTM.