DeskClock: Update drawables

* Copied from:
  frameworks/base/packages/overlays/IconPackCircularSettingsOverlay/res/drawable/ic_delete.xml
  frameworks/base/packages/SystemUI/res-keyguard/drawable/ic_backspace_black_24dp.xml
  https://materialdesignicons.com
  https://material.io

Change-Id: I84de4bfb9e38a88de182586e849c4e47d8d59b69
17 files changed