Broken since the merge of palm pressure detection in
25d54b90

, not sure why the test suite succeeded on that one nonetheless.

I'm not 100% sure why the test does what it does but it seems to be testing
that a wide touch on the side still striggers edge scrolling and not the thumb
detection on the bottom of the touchpad. That is obsolete now, it's hard to
generically figure out the small gap between thumb and palm pressure, so this
test almost always triggers palm detection. It's obsolete.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>