revert #266 (#268)

*Description of changes:*

revert
#266

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Author: wangzlei

lambda-layer/src/otel-instrument

@@ -107,7 +107,6 @@ if [ "${OTEL_AWS_APPLICATION_SIGNALS_ENABLED}" = "true" ]; then
     if [ -z "${OTEL_METRICS_EXPORTER}" ]; then
         export OTEL_METRICS_EXPORTER="none";
     fi
-    export LAMBDA_RESOURCE_ATTRIBUTES="aws.pulse.over.midlina=true,${LAMBDA_RESOURCE_ATTRIBUTES}"
 fi
 
 # - If Application Signals is disabled