Remove DATA_ENABLED_PROP system property.

DATA_ENABLED_PROP system property is used inclusively to
ImsManager to keep track of whether mobile data is enabled. Now
we have a system API that ImsManager can use. So we are removing
it.

Bug: 67602046
Test: manual and existing unit-tests
Change-Id: I0e1100a72674737adcc06fe36110f4dc3ed25056
1 file changed
tree: 084eba92c93df9c014c4459ba61b2da56d9f3dd1
  1. src/
  2. tests/
  3. Android.mk
  4. CleanSpec.mk
  5. OWNERS
  6. README.txt