Revert "CMakeLists.txt: add DEBUG define when doing a debug build"
Revert "CMakeLists.txt: add DEBUG define when doing a debug build"

This reverts commit 52a48a728a48d4fa3af3697a22b1c565ea80907c which made debug
builds stop working.

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

Hbrinj/mraa,w4ilun/mraa,sundw2014/mraa,stefan-andritoiu/mraa-gpio-chardev,pctj101/mraa,yoyojacky/mraa,yongli3/mraa,whbruce/mraa,pctj101/mraa,damcclos/mraa,alext-mkrs/mraa,Pillar1989/mraa,ProfFan/mraa,whbruce/mraa,malikabhi05/mraa,stefan-andritoiu/mraa-gpio-chardev,anonymouse64/mraa,jontrulson/mraa,petreeftime/mraa,Pillar1989/mraa,noahchense/mraa,smileboywtu/mraa,jontrulson/mraa,timrtoo/Intel,petreeftime/mraa,w4ilun/mraa,yangjae/mraa,spitfire88/mraa,matt-auld/mraa,g-vidal/mraa,neuberfran/mraa,stefan-andritoiu/mraa,Propanu/mraa,damcclos/mraa,arunlee77/mraa,noahchense/mraa,jontrulson/mraa,ncrastanaren/mraa,ProfFan/mraa,Kiritoalex/mraa,arfoll/mraa,neuberfran/mraa,mircea/mraa,stefan-andritoiu/mraa,SyrianSpock/mraa,Hbrinj/mraa,Hbrinj/mraa,arunlee77/mraa,whbruce/mraa,arfoll/mraa,tripzero/mraa,ncrastanaren/mraa,mircea/mraa,KurtE/mraa,arfoll/mraa,noahchense/mraa,andreivasiliu2211/mraa,andreivasiliu2211/mraa,spitfire88/mraa,neuberfran/mraa,sergev/mraa,nioinnovation/mraa,damcclos/mraa,ProfFan/mraa,anonymouse64/mraa,nioinnovation/mraa,seem-sky/mraa,Propanu/mraa,alexandru-elisei/mraa,STANAPO/mraa,ncrastanaren/mraa,timrtoo/Intel,yongli3/mraa,anonymouse64/mraa,Propanu/mraa,zBMNForks/mraa,spitfire88/mraa,allela-roy/mraa,tripzero/mraa,alext-mkrs/mraa,arfoll/mraa,arunlee77/mraa,sundw2014/mraa,Meirtz/mraa,allela-roy/mraa,w4ilun/mraa,yangjae/mraa,sergev/mraa,jontrulson/mraa,intel-iot-devkit/mraa,nioinnovation/mraa,noahchense/mraa,intel-iot-devkit/mraa,Propanu/mraa,tripzero/mraa,andreivasiliu2211/mraa,sergev/mraa,STANAPO/mraa,sundw2014/mraa,pctj101/mraa,Hbrinj/mraa,noahchense/mraa,g-vidal/mraa,alexandru-elisei/mraa,ProfFan/mraa,KurtE/mraa,malikabhi05/mraa,ncrastanaren/mraa,stefan-andritoiu/mraa-gpio-chardev,alexandru-elisei/mraa,SyrianSpock/mraa,yongli3/mraa,intel-iot-devkit/mraa,alext-mkrs/mraa,neuroidss/mraa,sergev/mraa,stefan-andritoiu/mraa,Jon-ICS/mraa,mircea/mraa,alext-mkrs/mraa,yangjae/mraa,pctj101/mraa,Jon-ICS/mraa,w4ilun/mraa,timrtoo/Intel,yoyojacky/mraa,timrtoo/Intel,seem-sky/mraa,zBMNForks/mraa,arfoll/mraa,neuroidss/mraa,yongli3/mraa,g-vidal/mraa,Jon-ICS/mraa,neuberfran/mraa,alex1818/mraa,arunlee77/mraa,sundw2014/mraa,Propanu/mraa,petreeftime/mraa,seem-sky/mraa,intel-iot-devkit/mraa,alexandru-elisei/mraa,malikabhi05/mraa,KurtE/mraa,g-vidal/mraa,neuroidss/mraa,STANAPO/mraa,smileboywtu/mraa,yoyojacky/mraa,Kiritoalex/mraa,spitfire88/mraa,g-vidal/mraa,KurtE/mraa,alexandru-elisei/mraa,petreeftime/mraa,zBMNForks/mraa,yongli3/mraa,smileboywtu/mraa,matt-auld/mraa,alex1818/mraa,stefan-andritoiu/mraa,whbruce/mraa,timrtoo/Intel,yangjae/mraa,intel-iot-devkit/mraa,seem-sky/mraa,Kiritoalex/mraa,stefan-andritoiu/mraa-gpio-chardev,pctj101/mraa,ncrastanaren/mraa,jontrulson/mraa,sundw2014/mraa,Meirtz/mraa,stefan-andritoiu/mraa-gpio-chardev,malikabhi05/mraa,alex1818/mraa,allela-roy/mraa,malikabhi05/mraa,neuberfran/mraa,SyrianSpock/mraa,seem-sky/mraa,Meirtz/mraa,stefan-andritoiu/mraa,KurtE/mraa,Pillar1989/mraa,alext-mkrs/mraa,matt-auld/mraa,sergev/mraa,andreivasiliu2211/mraa