chore: remove husky 🪓🐶

We remove husky, which is triggering pre-push git hooks, including
running "npm lint". This is causing failures when building Docker
images, because "npm clean-install --omit=dev" automatically triggers "npm
prepare", which attemps to run "husky". But husky is not listed in the
build dependencies, only in devDependencies. As a consequence, package
installation is failing with the following error:

        14.13 > @edx/frontend-app-ora-grading@0.0.1 prepare
        14.13 > husky install
        14.13
        14.15 sh: 1: husky: not found

Similar to: openedx/frontend-app-learning#1622

Author: regisb

package-lock.json

@@ -23,11 +23,6 @@
     "test:ci": "TZ=UTC fedx-scripts jest --silent --coverage --passWithNoTests",
     "types": "tsc --noEmit"
   },
-  "husky": {
-    "hooks": {
-      "pre-commit": "npm run lint"
-    }
-  },
   "author": "edX",
   "license": "AGPL-3.0",
   "homepage": "https://github.com/openedx/frontend-app-authoring#readme",
@@ -120,7 +115,6 @@
     "axios-mock-adapter": "1.22.0",
     "eslint-import-resolver-webpack": "^0.13.8",
     "fetch-mock-jest": "^1.5.1",
-    "husky": "7.0.4",
     "jest-canvas-mock": "^2.5.2",
     "jest-expect-message": "^1.1.3",
     "react-test-renderer": "^18.3.1",