Remove Lambda header example because it's already available in the subdirectory

Author: gordonpn

examples/README.md

@@ -1,15 +1,5 @@
 # Examples
 
-## Lambda
-
-You can deploy the Lambda example by running:
-
-```sh
-export AWS_REGION=us-west-2
-export LAMBDA_ARN="arn:aws:lambda:$AWS_REGION:<AccountId>:function:<FunctionName>"
-./examples/lambda/deploy/deploy-lambda.sh $LAMBDA_ARN $AWS_REGION
-```
-
 ## Docker
 
 With Docker images, using the `awslogs` log driver will send your container logs to CloudWatch Logs. All you have to do is write to STDOUT and your EMF logs will be processed.