~/.xinitrc: Use trackpoint exclusively.

I miss the old scrolling a bit, but I don't have to move my hands so
much anymore and I don't accidently click stuff anymore.
There's a slightly weird issue with a "drifting" cursor sometimes,
though.

.xinitrc

#conky&
#xmodmap ~/.swap-esc-capslock
synclient TouchpadOff=1
exec awesome
#exec xmonad