cpu/esp8266/esp_wifi: remove gnrc specific code
cpu/esp8266/esp_wifi: remove gnrc specific code


smlng/RIOT,miri64/RIOT,yogo1212/RIOT,kaspar030/RIOT,OlegHahm/RIOT,smlng/RIOT,miri64/RIOT,basilfx/RIOT,kaspar030/RIOT,OlegHahm/RIOT,OTAkeys/RIOT,yogo1212/RIOT,toonst/RIOT,basilfx/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,authmillenon/RIOT,toonst/RIOT,toonst/RIOT,OTAkeys/RIOT,smlng/RIOT,basilfx/RIOT,toonst/RIOT,yogo1212/RIOT,basilfx/RIOT,ant9000/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,ant9000/RIOT,kaspar030/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,authmillenon/RIOT,OTAkeys/RIOT,miri64/RIOT,kYc0o/RIOT,jasonatran/RIOT,miri64/RIOT,smlng/RIOT,jasonatran/RIOT,OlegHahm/RIOT,ant9000/RIOT,miri64/RIOT,kYc0o/RIOT,kYc0o/RIOT,jasonatran/RIOT,smlng/RIOT,kYc0o/RIOT,basilfx/RIOT,yogo1212/RIOT,toonst/RIOT,OlegHahm/RIOT,ant9000/RIOT,OTAkeys/RIOT,authmillenon/RIOT,yogo1212/RIOT,kaspar030/RIOT,authmillenon/RIOT,OTAkeys/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,ant9000/RIOT,yogo1212/RIOT,kYc0o/RIOT,kaspar030/RIOT