fix(serverless): remove confusing sentence about different port

Indeed, we don't specificy what 'different' means here: from a default value?

Author: ahamez

pages/serverless-containers/concepts.mdx

@@ -148,7 +148,7 @@ The container can then process the message and perform any required actions, suc
 
 ## Port
 
-The port parameter specifies the network port that your container listens on for incoming requests. If your application or container is set up to listen on a different port, you must specify it using the port parameter when deploying your container to Serverless Containers. It must reflect the port configuration within your container for your service to function correctly.
+The port parameter specifies the network port that your container listens on for incoming requests. It must reflect the port configuration within your container for your service to function correctly.
 
 The value defined in the port parameter will then be passed to your container during the deployment inside the `PORT` environment variable.