Bug#472970: expect-tcl8.3 replacement

[Matthias Klose <doko@debian.org>]

Sergei, please could you check that the expect built again tcl8.5 is ok for 
running the gcc-4.4 and gcc-snapshot testsuites (and other testsuites) on hppa? 
If yes, then we can remove expect-tcl8.3 from unstable

thanks, Matthias