remove unused electron-updater npm dep (was left over from when I started the project and had auto-update enabled)

Author: szTheory

package.json

@@ -31,7 +31,6 @@
 		"electron-log": "^4.0.0",
 		"electron-store": "^5.1.0",
 		"electron-unhandled": "^3.0.0",
-		"electron-updater": "^4.2.0",
 		"electron-util": "^0.13.0",
 		"js-yaml": "^3.13.1",
 		"node-exiftool": "^2.3.0",