Fix RF_MODE override
Fix RF_MODE override

__get_rf_mode was declared but was not used

Adam5Wu/Arduino,quertenmont/Arduino,gguuss/Arduino,Lan-Hekary/Arduino,me-no-dev/Arduino,Lan-Hekary/Arduino,wemos/Arduino,sticilface/Arduino,martinayotte/ESP8266-Arduino,toastedcode/esp8266-Arduino,KaloNK/Arduino,toastedcode/esp8266-Arduino,Adam5Wu/Arduino,NullMedia/Arduino,sticilface/Arduino,gguuss/Arduino,me-no-dev/Arduino,toastedcode/esp8266-Arduino,esp8266/Arduino,Juppit/Arduino,me-no-dev/Arduino,Links2004/Arduino,lrmoreno007/Arduino,esp8266/Arduino,Lan-Hekary/Arduino,hallard/Arduino,sticilface/Arduino,hallard/Arduino,Juppit/Arduino,hallard/Arduino,quertenmont/Arduino,hallard/Arduino,Links2004/Arduino,quertenmont/Arduino,jes/Arduino,Adam5Wu/Arduino,Juppit/Arduino,jes/Arduino,wemos/Arduino,esp8266/Arduino,Adam5Wu/Arduino,NullMedia/Arduino,martinayotte/ESP8266-Arduino,toastedcode/esp8266-Arduino,Adam5Wu/Arduino,Links2004/Arduino,wemos/Arduino,toastedcode/esp8266-Arduino,gguuss/Arduino,lrmoreno007/Arduino,wemos/Arduino,me-no-dev/Arduino,KaloNK/Arduino,KaloNK/Arduino,esp8266/Arduino,martinayotte/ESP8266-Arduino,Links2004/Arduino,gguuss/Arduino,jes/Arduino,lrmoreno007/Arduino,Links2004/Arduino,Juppit/Arduino,esp8266/Arduino,wemos/Arduino,me-no-dev/Arduino,KaloNK/Arduino,hallard/Arduino,lrmoreno007/Arduino,sticilface/Arduino,quertenmont/Arduino,Lan-Hekary/Arduino,jes/Arduino,KaloNK/Arduino,lrmoreno007/Arduino,NullMedia/Arduino,martinayotte/ESP8266-Arduino,gguuss/Arduino,Juppit/Arduino,NullMedia/Arduino,martinayotte/ESP8266-Arduino,NullMedia/Arduino,sticilface/Arduino,jes/Arduino,Lan-Hekary/Arduino,quertenmont/Arduino