Revert "DownloadProvider: add to support download into sdcard storage"

This reverts commit 1a317bf2ce5ba8934ab369a94fbfd445bf0dbe37.

Change-Id: Id6bd7e2bbff3bffeb1c2c7f8676967cc99c6ee75
Merge "Revert "DownloadProvider: add to support download into sdcard storage"" into android-4.4