throw out reproducible flag to silence lintian

we aren't really after reproducible builds right now, though there is
an open task. in any event right now it doesn't matter and lintian
is angry about this not being _MAINT. since merging it into MAINT
would be less clear for future merges I'm opting to comment out the
line then hopefully whoever merges goes back in time to read this
here message and learns that we want this option but only if it is
in the MAINT variable ;)