remove LAMBDA_REGIONS var

Author: ezhang6811

.github/workflows/release-build.yml

@@ -19,7 +19,6 @@ env:
   RELEASE_PRIVATE_REGISTRY: 020628701572.dkr.ecr.us-west-2.amazonaws.com
   PACKAGE_NAME: aws-distro-opentelemetry-node-autoinstrumentation
   ARTIFACT_NAME: aws-aws-distro-opentelemetry-node-autoinstrumentation-${{ github.event.inputs.version }}.tgz
-  LAMBDA_AWS_REGIONS: ${{ github.event.inputs.aws_region }}
   COMMERCIAL_REGIONS: us-east-1, us-east-2, us-west-1, us-west-2, ap-south-1, ap-northeast-3, ap-northeast-2, ap-southeast-1, ap-southeast-2, ap-northeast-1, ca-central-1, eu-central-1, eu-west-1, eu-west-2, eu-west-3, eu-north-1, sa-east-1, ap-southeast-5, ap-southeast-7, mx-central-1, ca-west-1, cn-north-1, cn-northwest-1
   LAYER_NAME: AWSOpenTelemetryDistroJs
 
@@ -152,7 +151,7 @@ jobs:
       - name: Set up regions matrix
         id: set-matrix
         run: |
-          IFS=',' read -ra REGIONS <<< "${{ env.LAMBDA_AWS_REGIONS }}"
+          IFS=',' read -ra REGIONS <<< "${{ github.event.inputs.aws_region }}"
           MATRIX="["
           for region in "${REGIONS[@]}"; do
             trimmed_region=$(echo "$region" | xargs)