Removing automatic service name from Lambda instrumentation (#1080)

Co-authored-by: Christian Neumüller <christian+github@neumueller.me>

Author: ehornby

src/OpenTelemetry.Instrumentation.AWSLambda/CHANGELOG.md

@@ -6,6 +6,8 @@
   ([#626](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/626))
 * Removes `AddAWSLambdaConfigurations` method with default configure parameter.
   ([#943](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/943))
+* BREAKING (behavior): `AddAWSLambdaConfigurations` no longer calls `AddService`
+  ([#1080](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/1080))
 
 ## 1.1.0-beta.2
 

src/OpenTelemetry.Instrumentation.AWSLambda/TracerProviderBuilderExtensions.cs

@@ -55,7 +55,6 @@ public static TracerProviderBuilder AddAWSLambdaConfigurations(
         builder.AddSource(AWSLambdaWrapper.ActivitySourceName);
         builder.SetResourceBuilder(ResourceBuilder
             .CreateEmpty()
-            .AddService(AWSLambdaUtils.GetFunctionName(), null, null, false)
             .AddTelemetrySdk()
             .AddAttributes(AWSLambdaResourceDetector.Detect()));