[gentoo-python] Removed python from bzr ebuilds

[Dirkjan Ochtman]

Hi there,

FYI: since the python team is (like many other teams) understaffed at
the moment (despite appearances to the contrary), and since the bzr
ebuilds are more of an application than a python library, and already
have their own herd which seems more than capable of maintaining qbzr,
bzr and bzrtools, I removed python from the metadata and most bugs for
these packages. Hope that's okay.

Cheers,

Dirkjan