remove scratch-gui

now that we are using rpf fork

Author: chrisroos

scratch/package.json

@@ -12,8 +12,7 @@
     "@raspberrypifoundation/scratch-gui": "0.1.0-raspberrypifoundation.20230606092831",
     "react": "16.2.0",
     "react-dom": "16.2.1",
-    "redux": "3.7.2",
-    "scratch-gui": "^5.1.27"
+    "redux": "3.7.2"
   },
   "devDependencies": {
     "@babel/core": "7.14.8",