Revert "Reland "ANDROID: suppress unused variable warning"" am: e2ac889918 am: e3d47e9920 am: dae8b9e803 am: 56701fd86b am: 9e608da2e4

Original change: https://android-review.googlesource.com/c/platform/external/exfatprogs/+/2750684

Change-Id: I11e17600bf1b1ccb5a7fb229dd4fb90fd02af13e
Signed-off-by: Automerger Merge Worker <[email protected]>