Fix the fix of aliasing problem with UI shortcut methods

Commit 970e09d678fe1ca540db1228944b0602972bbffc solved an aliasing
problem when calling UI shortcut methods by qualifying their calls by
|UIShortcuts| in some cases. It turned out the shortcut mehtods are
defined as instance-level methods, not module-level ones, so this did't
work.

This commit fixes the fix by removing the qualification and using good
old |term| call instead.