russian/eric6: remove port broken after 75b955057c8e
$ make index
[...]
- describe.russian ---
make[4]: "/usr/ports/russian/eric6/Makefile" line 6: Cannot open /usr/ports/russian/eric6/../../devel/eric6/Makefile.inc
make[4]: Fatal errors encountered -- cannot continue===> russian/eric6 failed
- [describe.russian] Error code 1
make[1]: stopped in /usr/ports
- Error code 1