--- rxvt-unicode/src/urxvt.pm	2006/12/07 03:02:44	1.150
+++ rxvt-unicode/src/urxvt.pm	2006/12/14 17:22:04	1.151
@@ -1956,11 +1956,6 @@
 
 package urxvt::watcher;
 
-@urxvt::timer::ISA = __PACKAGE__;
-@urxvt::iow::ISA   = __PACKAGE__;
-@urxvt::pw::ISA    = __PACKAGE__;
-@urxvt::iw::ISA    = __PACKAGE__;
-
 =head2 The C<urxvt::timer> Class
 
 This class implements timer watchers/events. Time is represented as a