Processed: skimage: migrate to current cython

[Debian Bug Tracking System]

Processing control commands:

> block 1078460 by -1
Bug #1078460 [src:cython-legacy] RM: cython-legacy -- ROM; Legacy transition package no longer needed
1078460 was blocked by: 1076515
1078460 was not blocking any bugs.
Added blocking bug(s) of 1078460: 1078524

-- 
1078460: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078460
1078524: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1078524
Debian Bug Tracking System
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