Revert "OMAP4-common: Add TARGET_USES_LIBEXIF_COMPAT flag"

Fixing this with LD_PRELOAD in init is much nicer.

This reverts commit ac7422b0c87bbadf1b350aeaa44d28421b203358.

Change-Id: I30d7b63600306a1eb86b78d77cf308550193a8f0