crowdin: Remove invalid strings

* aapt2 fails when linking resources which contain strings with a product
  attribute but don't have the same string with product=default set
* Search for all strings in the relevant files which have a product
  attribute and look for the corresponding default one
* Remove all strings with that name if it doesn't exist

Change-Id: Id1be86564d62c23b3fc4274550af06639806744a
1 file changed
tree: 4fd436739736aa33bd30734d333dc487ba7e2902
  1. config/
  2. crowdin_sync.py
  3. README.mkdn