Revert "Bug 938033 - file is not recognized by video, but it can be played through transfered by bluetooth r=johnhu"

This reverts commit 80042a7be5f2c5538f2ded53a866fd48422fb091.
Merge pull request #16774 from dominickuo/revert-bug-938033

Revert "Bug 938033 - file is not recognized by video, but it can be played through transfered by bluetooth r=johnhu"