acquireTimeout warns in mysql2, remove

Author: glasnt

cloud-sql/mysql/mysql2/index.js

@@ -65,9 +65,7 @@ const createPool = async () => {
     // 'connectTimeout' is the maximum number of milliseconds before a timeout
     // occurs during the initial connection to the database.
     connectTimeout: 10000, // 10 seconds
-    // 'acquireTimeout' is the maximum number of milliseconds to wait when
-    // checking out a connection from the pool before a timeout error occurs.
-    acquireTimeout: 10000, // 10 seconds
+    // 'acquireTimeout' is currently unsupported by mysql2
     // 'waitForConnections' determines the pool's action when no connections are
     // free. If true, the request will queued and a connection will be presented
     // when ready. If false, the pool will call back with an error.