Remove settings: auto_cancel and auto_alternate

Remove settings: auto_cancel and auto_alternate

auto_cancel can be emulated with:

	super + ctrl + {h,j,k,l}
		dir={left,down,up,right}; \
		cur=$(bspc query -T -w focused.!automatic | jshon -e splitDir -u 2>&-); \
		[ "$dir" = "$cur" ] && dir=cancel; \
		bspc window -p "$dir"

and auto_alternate with:

	super + {_,alt + }{1-9,0}
		kind={desktop,monitor}; \
		item="^{1-9,10}"; \
		bspc query --"$kind"s --"$kind" "$\{item\}.focused" > /dev/null && item=last; \
		bspc "$kind" -f "$item"