fix: Change Lambda Resource CFN Primary Id to be Lambda Name

Author: yiyuan-he

aws-opentelemetry-distro/src/amazon/opentelemetry/distro/_aws_metric_attribute_generator.py

@@ -460,7 +460,6 @@ def _set_remote_type_and_identifier(span: ReadableSpan, attributes: BoundedAttri
         elif is_key_present(span, AWS_LAMBDA_FUNCTION_NAME):
             remote_resource_type = _NORMALIZED_LAMBDA_SERVICE_NAME + "::Function"
             remote_resource_identifier = _escape_delimiters(span.attributes.get(AWS_LAMBDA_FUNCTION_NAME))
-            cloudformation_primary_identifier = _escape_delimiters(span.attributes.get(AWS_LAMBDA_FUNCTION_ARN))
     elif is_db_span(span):
         remote_resource_type = _DB_CONNECTION_STRING_TYPE
         remote_resource_identifier = _get_db_connection(span)