Fix span pointers env var & tests (#5546)

* fix env var

* fix dynamodb tests not running

* refactor and simplify dynamodb integration tests

* allow mock agent to be closed idempotently

* fix race condition when mock agent is opened/closed multiple times in one test

* close agent after each span pointer test

* refactor payload tagging tests

Co-authored-by: Ruben Bridgewater <[email protected]>

Author: nhulston

packages/datadog-plugin-aws-sdk/src/services/dynamodb.js

@@ -164,7 +164,6 @@ class DynamoDb extends BaseAwsSdkPlugin {
       return
     }
     if (!primaryKeyConfig) {
-      log.warn('Missing DD_TRACE_DYNAMODB_TABLE_PRIMARY_KEYS env variable')
       return
     }
     const primaryKeySet = primaryKeyConfig[tableName]