trydiff: remove unused variable 'modifiedset'
We started updating 'modifiedset' in
a9853fc172d2 (trydiff: simplify
checking for additions, 2014-12-23) but in the same commit, we removed
the last use of the variable. Clean it up.
#require symlink
http://mercurial.selenic.com/bts/issue1438
$ hg init
$ ln -s foo link
$ hg add link
$ hg ci -mbad link
$ hg rm link
$ hg ci -mok
$ hg diff -g -r 0:1 > bad.patch
$ hg up 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg import --no-commit bad.patch
applying bad.patch
$ hg status
R link
? bad.patch