Revert "chore: add snyk as an action (#230)"

This reverts commit 6570e3fba1.

.github/workflows/security.yml

@@ -1,11 +0,0 @@
-name: Security Flow
-on: push
-jobs:
-  security:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@master
-      - name: Run Snyk to check for vulnerabilities
-        uses: snyk/actions/node@0.1.0
-        env:
-          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}