chore: remove unnecessary direct node-gyp dependency (#943)

This was from way back in the beginning of Forge development, when it
didn't depend on `electron-rebuild`.

package.json

@@ -65,7 +65,6 @@
     "log-symbols": "^3.0.0",
     "mime-types": "^2.1.24",
     "node-fetch": "^2.6.0",
-    "node-gyp": "^4.0.0",
     "nugget": "^2.0.1",
     "open": "^6.0.0",
     "ora": "^3.0.0",