xf86-input-evdev was updated to 2.7.3

- Update to version 2.7.3:
+ Fix broken ButtonMapping option.
+ Don't delete the device on ENODEV.
+ Build fixes.
- Changes from version 2.7.2:
+ Various bug fixes.
- Changes from version 2.7.1:
+ Fix buffer overrun when populating axis label property array
(bnc#790938).
+ Fix inverted horizontal scroll (bnc#774539).
+ Various bug fixes.
- Drop u_evdev_fix-inverted-scrolling.patch: fixed upstream.