Update lambda-layers.md

Author: sthulb

docs/getting-started/lambda-layers.md

@@ -54,7 +54,6 @@ We publish the Lambda Layer for Powertools for AWS Lambda in all commercial regi
 | `us-gov-west-1`  | [arn:aws-us-gov:lambda:us-gov-west-1:165093116878:layer:AWSLambdaPowertoolsTypeScriptV2:28](#){: .copyMe}  |
 | `us-gov-east-1`  | [arn:aws-us-gov:lambda:us-gov-east-1:165087284144:layer:AWSLambdaPowertoolsTypeScriptV2:28](#){: .copyMe}  |
 | `cn-north-1`     | [arn:aws-aws-cn:lambda:cn-north-1:498634801083:layer:AWSLambdaPowertoolsTypeScriptV2:28](#){: .copyMe}     |
-| `cn-northwest-1` | [arn:aws-aws-cn:lambda:cn-northwest-1:499712207924:layer:AWSLambdaPowertoolsTypeScriptV2:28](#){: .copyMe} |
 
 ### Lookup Layer ARN via AWS SSM Parameter Store