I propose to remove OTEL_DOTNET_AUTO_ENABLED as it is redundant with the CORECLR_ENABLE_PROFILING and CLR_ENABLE_PROFILING env vars (or all CLR Profiler env vars can be unset).

It is also confusing as if one set it to false on .NET (Core) then he/she will still have the source instrumentation enabled. Therefore making as a bug.