Remove unused dependency

Author: tom-james-watson

package-lock.json

@@ -178,7 +178,6 @@
     "electron-debug": "^3.2.0",
     "electron-devtools-installer": "^3.1.1",
     "electron-log": "^4.3.2",
-    "electron-notarize": "^1.2.1",
     "electron-updater": "^6.3.0",
     "enzyme": "^3.8.0",
     "enzyme-adapter-react-16": "^1.7.1",