Don't use nose's with-id plugin anymore.

JNRowe · JNRowe · commit 3e19ca4f5ab7 · 2011-05-19T18:28:58.000+01:00
Identifier dumps from Python 3 can't be loaded in Python 2.  It can be used on
individual basis when needed.
diff --git a/setup.cfg b/setup.cfg
@@ -6,7 +6,6 @@ upload-dir = docs/.build/html
 cover-package = github2
 detailed-errors = 1
 with-coverage = 1
-with-id = 1
 [build_sphinx]
 source-dir = doc
 build-dir = doc/.build
