systemc: Get rid of the unused warning function in sc_event_finder_t.

Change-Id: Id615856af7ea366e499747e00f66924a25623663
Reviewed-on: https://gem5-review.googlesource.com/12261
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/core/sc_event.cc

@@ -35,17 +35,6 @@ namespace sc_core
 {
 
 
-/*
- * sc_event_finder
- */
-
-void
-sc_event_finder::warn_unimpl(const char *func) const
-{
-    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
-}
-
-
 /*
  * sc_event_and_list
  */

src/systemc/ext/core/sc_event.hh

@@ -59,7 +59,6 @@ class sc_port_base;
 class sc_event_finder
 {
   protected:
-    void warn_unimpl(const char *func) const;
     virtual ~sc_event_finder() {}
 
   public: