[Lambda] Remove b3/b3multi propagators

Author: majanjua-amzn

dependencyManagement/build.gradle.kts

@@ -40,9 +40,10 @@ val dependencyBoms = listOf(
   "com.google.protobuf:protobuf-bom:3.25.1",
   "com.linecorp.armeria:armeria-bom:1.26.4",
   "io.grpc:grpc-bom:1.59.1",
-  // netty-bom is a fix for CVE-2025-55163 (https://github.com/advisories/GHSA-prj3-ccx8-p6x4).
-  // Remove once https://github.com/aws/aws-sdk-java-v2/pull/6344 is released.
-  "io.netty:netty-bom:4.1.124.Final",
+  // netty-bom is a fix for CVE-2025-58056 (https://github.com/advisories/GHSA-fghv-69vj-qj49).
+  // Remove once https://github.com/aws/aws-sdk-java-v2/pull/6398 and https://github.com/aws/aws-sdk-java/pull/3192
+  // are both merged and released, and we update the corresponding dependencies.
+  "io.netty:netty-bom:4.1.126.Final",
   "io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:$otelAlphaVersion",
   "org.apache.logging.log4j:log4j-bom:2.21.1",
   "org.junit:junit-bom:5.10.1",

lambda-layer/otel-instrument

@@ -2,7 +2,7 @@
 
 export OTEL_INSTRUMENTATION_AWS_SDK_EXPERIMENTAL_SPAN_ATTRIBUTES=true
 
-export OTEL_PROPAGATORS="${OTEL_PROPAGATORS:-baggage,xray,tracecontext,b3,b3multi}"
+export OTEL_PROPAGATORS="${OTEL_PROPAGATORS:-baggage,xray,tracecontext}"
 
 export OTEL_SERVICE_NAME=${OTEL_SERVICE_NAME:-${AWS_LAMBDA_FUNCTION_NAME}}