fix: remove unused env variable #21

	name: RSK Explorer staging build and deploy

	on:
	push:
	branches: [staging]

	jobs:
	staging_build_and_deploy:
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	contents: read

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup Node 16
	uses: actions/setup-node@v1
	with:
	node-version: "16"

	- name: Install dependencies
	run: npm ci

	- name: Build site
	run: npm run build-with-tracking:staging

	- name: Configure AWS credentials
	uses: aws-actions/configure-aws-credentials@v4
	with:
	role-to-assume: ${{ secrets.STAGING_ROLE_ARN }}
	aws-region: ${{ secrets.STAGING_AWS_REGION }}

	- name: Deploy site to S3
	run: \|
	aws s3 sync --sse aws:kms --sse-kms-key-id ${{ secrets.STAGING_KMS_KEY_ID }} --delete --only-show-errors --exclude .gitkeep dist/ ${{ secrets.STAGING_S3_BUCKET }}
	- name: Invalidate CloudFront cache
	run: \|
	aws cloudfront create-invalidation --distribution-id ${{ secrets.STAGING_CLOUDFRONT_DISTRIBUTION }} --paths "/*"

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