Remove dependabot

.github/dependabot.yml

@@ -1,18 +0,0 @@
-version: 2
-updates:
-- package-ecosystem: composer
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 99
-  target-branch: staging
-  allow:
-  - dependency-type: all
-- package-ecosystem: npm
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 99
-  target-branch: staging
-  allow:
-  - dependency-type: all