Says to remove this code, but this code is missing:
"Now you actually want to remove the code that activates the plugin from Construct 2. You do this by clicking the DEVELOP tab and opening the intelxdk.config.additions.xml file. Find this code:
<intelxdk:plugin intelxdk:name="https://github.com/cranberrygame/cordova-plugin-game --variable APP_ID='YOUR_GOOGLE_PLAY_GAME_APP_ID'" intelxdk:value="https://github.com/cranberrygame/cordova-plugin-game --variable APP_ID='YOUR_GOOGLE_PLAY_GAME_APP_ID'" />
and remove it ALL!
Hit CTRL + S and move to the Build tab, build for android and you're done!
REMINDER: You will need to remove the code every time you export it from Construct 2, since the file gets replaced with each exportation.
If you like this tutorial, please favorite it! If you have any questions or think that I'm not clear enough with a part, please tell me in the comments and I will reply and/or update the tutorial. Thank you and hope this helps! "