chore(githooks): Remove check-coverage commit hook

Because that's not a very friendly way to encurage contributions. Handle that with tooling on the
PR.

Author: Kent C. Dodds

package.json

@@ -51,7 +51,7 @@
   "config": {
     "ghooks": {
       "commit-msg": "validate-commit-msg",
-      "pre-commit": "npm run cover && npm run check-coverage && npm run build"
+      "pre-commit": "npm run cover && npm run build"
     },
     "commitizen": {
       "path": "node_modules/cz-conventional-changelog"