remove AC_REVISION
diff --git a/configure.in b/configure.in
index 71f488d..274c68d 100644
--- a/configure.in
+++ b/configure.in
@@ -30,7 +30,6 @@
     HGBRANCH=""
 fi
 
-AC_REVISION(HGVERSION)
 AC_CONFIG_SRCDIR([Include/object.h])
 AC_CONFIG_HEADER(pyconfig.h)