There's three different ways:

1. just use index.html as the launch page (instead of index_lms.html)
2. disable the SCORM tracking extension then rebuild using $ grunt build
3. completely uninstall the SCORM tracking extension then rebuild using $ grunt build

The first method just fools the course into thinking there is an LMS available - so it's still doing all the SCORM tracking in the background but the data goes nowhere. This is best if you have a course that you want to be able to put on the webserver or on an LMS.

The second method turns off SCORM tracking completely - but all the SCORM code and files will still be included in the build.

The third method completely removes all SCORM code and files from the build.