Revert "Parcel: extra validation/debug code for writeDupFileDescriptor"

Underlying bug has been fixed, extra debug code no longer needed.

This reverts commit ccf851f108c008d086b7f3c3923d60d385985e71.

Change-Id: I19ad9239efdf1d8f70cd74af9b7c2ae97713208f
1 file changed