Revert "Add derive_gid flag for mounting sdcardfs"

This reverts commit 8ca02bbeb54bed3057414d12624da5a02fa4d3be.

Causes boot loop on bullhead.
Bug: 63245673
Bug: 65660058

Change-Id: Ife5f83ebf56fb956e5015d2797b5b47a515ec171
1 file changed