reprepro: remove hardy-wikimedia/lucid-wikimedia-mysql

Those two suites are unused and legacy, stop hosting them.

Change-Id: I3fb13e77f0c4a3331006cb843d9b028fc826d614
reprepro: drop architecture i386

We have no i386/i686 servers. We also don't have a single i386 package
in any of our suites and we clearly do not make an effort building for
i386, so let's not pretend we host such packages anymore.

Change-Id: I2b46600fa2c9d4b2b9a5af0eb6af3c3a107d75e7
Merge "reprepro: remove hardy-wikimedia/lucid-wikimedia-mysql" into production
Merge "reprepro: drop architecture i386" into production