* apt-pkg/cachefilter.cc:

* apt-pkg/cachefilter.cc:
  - remove architecture-specific arch to tuple expansion-rules as they lead
    to the same tuples for different architectures (e.g. linux-arm for arm,
    armel and armhf) while the dpkg-architecture code uses triples which
    are different (in the first part, which we omit in our tuples), so e.g.
    build-dep restrictions for armel ended up effecting armhf as well