Clean up revertLastWord()

The "deleteChar" argument of this method is acutally always true in the current code path.
Also, in this method, textToTheLeft virtually never has a punctuation letter as its initial
character.  This change is one of preparatory changes for bug:4983945.

Change-Id: I531a32570a35634c21c1d74b2b461e40a1b7f660
2 files changed
tree: eb861fb90c3067e4551536cd5a5c701c90e8a78a
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk