* Remove no-longer-necessary LTO checks from keyboards' config.h files * Remove unnecessary LTO check in @danielo515's Ergodox EZ keymap * Remove unnecessary USE_Link_Time_Optimization checks from keyboards' config.h files Note: DISABLE_LEADER doesn't seem to be used anywhere
* add sick68 keyboard * relocate to keyboards/handwired/sick68 * Apply suggestions from code review * delete config.h because was emply * Apply suggestions from code review