Deleted the ancient, unused 'quit' argument of the relax interpreter object.
This code was identified in a post by Troels Linnet at http://thread.gmane.org/gmane.science.nmr.relax.devel/5000/focus=5003.
This argument never worked correctly and has not been used for many, many years. Many code paths in relax needed to be updated to remove the argument.
Authored by: bugman 2014-02-13
Parent: [r22178]
Child: [r22180]