imraa.c: remove ARGP_KEY_ARG checking that makes no sense
imraa.c: remove ARGP_KEY_ARG checking that makes no sense

Signed-off-by: Brendan Le Foll <3e0e8c4069934e8b47d99704927a85c66c0ceb33@intel.com>

ProfFan/mraa,malikabhi05/mraa,jontrulson/mraa,Propanu/mraa,Propanu/mraa,sergev/mraa,alext-mkrs/mraa,stefan-andritoiu/mraa-gpio-chardev,KurtE/mraa,whbruce/mraa,ncrastanaren/mraa,arfoll/mraa,ncrastanaren/mraa,arfoll/mraa,g-vidal/mraa,intel-iot-devkit/mraa,alext-mkrs/mraa,arfoll/mraa,arunlee77/mraa,whbruce/mraa,w4ilun/mraa,stefan-andritoiu/mraa-gpio-chardev,yongli3/mraa,g-vidal/mraa,yongli3/mraa,spitfire88/mraa,jontrulson/mraa,Propanu/mraa,spitfire88/mraa,Jon-ICS/mraa,malikabhi05/mraa,yongli3/mraa,KurtE/mraa,arfoll/mraa,alext-mkrs/mraa,g-vidal/mraa,Jon-ICS/mraa,spitfire88/mraa,arunlee77/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa,Jon-ICS/mraa,g-vidal/mraa,ncrastanaren/mraa,sergev/mraa,arunlee77/mraa,spitfire88/mraa,intel-iot-devkit/mraa,intel-iot-devkit/mraa,yongli3/mraa,Propanu/mraa,jontrulson/mraa,stefan-andritoiu/mraa,Propanu/mraa,w4ilun/mraa,whbruce/mraa,stefan-andritoiu/mraa-gpio-chardev,ProfFan/mraa,malikabhi05/mraa,ProfFan/mraa,KurtE/mraa,intel-iot-devkit/mraa,jontrulson/mraa,arunlee77/mraa,ProfFan/mraa,sergev/mraa,stefan-andritoiu/mraa,alext-mkrs/mraa,stefan-andritoiu/mraa-gpio-chardev,whbruce/mraa,sergev/mraa,w4ilun/mraa,stefan-andritoiu/mraa,KurtE/mraa,arfoll/mraa,sergev/mraa,malikabhi05/mraa,intel-iot-devkit/mraa,malikabhi05/mraa,yongli3/mraa,ncrastanaren/mraa,g-vidal/mraa,KurtE/mraa,alext-mkrs/mraa,stefan-andritoiu/mraa-gpio-chardev,stefan-andritoiu/mraa,jontrulson/mraa,w4ilun/mraa