# HG changeset patch
# User Yuya Nishihara <yuya@tcha.org>
# Date 1495983090 -32400
# Node ID 37ea47a50875231bf7378f4aa29d6d5386c23128
# Parent  3b569745af6ca0706b1c289cae49e431731cbd49
match: remove override of prefix() from differencematcher

It's exactly the same as basematcher.prefix().

diff -r 3b569745af6c -r 37ea47a50875 mercurial/match.py
--- a/mercurial/match.py	Sat May 27 18:52:46 2017 +0900
+++ b/mercurial/match.py	Sun May 28 23:51:30 2017 +0900
@@ -480,9 +480,6 @@
     def anypats(self):
         return self._m1.anypats() or self._m2.anypats()
 
-    def prefix(self):
-        return not self.always() and not self.isexact() and not self.anypats()
-
     def __repr__(self):
         return ('<differencematcher m1=%r, m2=%r>' % (self._m1, self._m2))