Revert "hlte: Add pre-build mount.exfat"

Use proper fix

Fix broken exfat due to -O3 flags with JustArchi Optimizations Mod
https://github.com/temasek/android_external_fuse/commit/7bfdef56cb53670b9514d8198fcc2c956c8b7c82

This reverts commit 55855524c83e916b8dc22a212b55bc7474fb0dfc.
Revert "i9300: Add pre-build mount.exfat"

Use proper fix

Fix broken exfat due to -O3 flags with JustArchi Optimizations Mod
https://github.com/temasek/android_external_fuse/commit/7bfdef56cb53670b9514d8198fcc2c956c8b7c82

This reverts commit 52bac1352b31fbabcb04c889abc8dd252161d965.