cpu/esp32: remove extra isync from periph/timer
cpu/esp32: remove extra isync from periph/timer


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