[Not for merging] Phase out Grpc package for OTLP Exporter.

[Yun-Ting]

Working towards #3421

[codecov]

Codecov Report

Merging #3573 (34c7f9d) into main (99b49b6) will decrease coverage by 0.17%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #3573      +/-   ##
==========================================
- Coverage   87.46%   87.29%   -0.18%     
==========================================
  Files         278      278              
  Lines       10082    10096      +14     
==========================================
- Hits         8818     8813       -5     
- Misses       1264     1283      +19     

Impacted Files	Coverage Δ
...mentation/ExportClient/BaseOtlpGrpcExportClient.cs	83.33% <ø> (ø)
...entation/ExportClient/OtlpGrpcTraceExportClient.cs	35.71% <ø> (-42.86%)	⬇️
...TelemetryProtocol/OtlpExporterOptionsExtensions.cs	97.93% <100.00%> (+0.21%)	⬆️
...xporter.OpenTelemetryProtocol/OtlpTraceExporter.cs	36.36% <0.00%> (-40.91%)	⬇️
...Propagators/OpenTelemetryPropagatorsEventSource.cs	87.50% <0.00%> (-12.50%)	⬇️
...ZPages/Implementation/ZPagesExporterEventSource.cs	56.25% <0.00%> (-6.25%)	⬇️
...metryProtocol/Implementation/ActivityExtensions.cs	91.20% <0.00%> (-3.30%)	⬇️
...ter.ZPages/Implementation/ZPagesActivityTracker.cs	97.14% <0.00%> (-2.86%)	⬇️
src/OpenTelemetry/Metrics/CircularBufferBuckets.cs	100.00% <0.00%> (ø)
... and 6 more

[Yun-Ting]

OpenTelemetry.Exporter.OpenTelemetryProtocol.Tests.OtlpExporterOptionsExtensionsTests.GetTraceExportClient_SupportedProtocol_ReturnsCorrectExportClient(protocol: Grpc, expectedExportClientType: typeof(OpenTelemetry.Exporter.OpenTelemetryProtocol.Implementation.ExportClient.OtlpGrpcTraceExportClient))
 Source: OtlpExporterOptionsExtensionsTests.cs line 91
 Duration: 1.2 sec

Message: 
System.PlatformNotSupportedException : gRPC requires extra configuration on .NET implementations that don't support gRPC over HTTP/2. An HTTP provider must be specified using GrpcChannelOptions.HttpHandler.The configured HTTP provider must either support HTTP/2 or be configured to use gRPC-Web. See https://aka.ms/aspnet/grpc/netstandard for details.

Stack Trace: 
HttpHandlerFactory.CreatePrimaryHandler()
GrpcChannel.CreateInternalHttpInvoker(HttpMessageHandler handler)
GrpcChannel.ctor(Uri address, GrpcChannelOptions channelOptions)
GrpcChannel.ForAddress(Uri address, GrpcChannelOptions channelOptions)
GrpcChannel.ForAddress(Uri address)
OtlpExporterOptionsExtensions.CreateChannel(OtlpExporterOptions options) line 39
OtlpGrpcTraceExportClient.ctor(OtlpExporterOptions options, TraceServiceClient traceServiceClient) line 39
OtlpExporterOptionsExtensions.GetTraceExportClient(OtlpExporterOptions options) line 81
OtlpExporterOptionsExtensionsTests.GetTraceExportClient_SupportedProtocol_ReturnsCorrectExportClient(OtlpExportProtocol protocol, Type expectedExportClientType) line 106

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[github-actions]

Closed as inactive. Feel free to reopen if this PR is still being worked on.