Deprecates utils.create_dir().

This function was a workaround for the exist_ok flag missing
from Python3.4. Now that Python3.4 is past the final release,
we no longer need to support that version.

Also fixes UTs broken by aosp/1231574.

Bug: None
Test: UTs.
Change-Id: If0592017e1bf374d6b4f5d27c17c32276979029a
40 files changed
tree: 3f40297267f7321d85564e8067940c168e807fa7
  1. acts/
  2. tools/
  3. wts-acts/
  4. Android.mk
  5. OWNERS
  6. PREUPLOAD.cfg