5088 it's probably ok for vi to stop working around pdp-11 bugs now

@@ -922,36 +922,10 @@
         if (addr != dot && addr >= one && addr <= dol)
                 markDOT();
 }
 
 /*
- * The following code is defensive programming against a bug in the
- * pdp-11 overlay implementation.  Sometimes it goes nuts and asks
- * for an overlay with some garbage number, which generates an emt
- * trap.  This is a less than elegant solution, but it is somewhat
- * better than core dumping and losing your work, leaving your tty
- * in a weird state, etc.
- */
-int _ovno;
-
-/*ARGSUSED*/
-void 
-onemt(sig)
-int sig;
-{
-        int oovno;
-
-        signal(SIGEMT, onemt);
-        oovno = _ovno;
-        /* 2 and 3 are valid on 11/40 type vi, so */
-        if (_ovno < 0 || _ovno > 3)
-                _ovno = 0;
-        error(value(vi_TERSE) ? gettext("emt trap, _ovno is %d ") :
-gettext("emt trap, _ovno is %d   - try again"));
-}
-
-/*
  * When a hangup occurs our actions are similar to a preserve
  * command.  If the buffer has not been [Modified], then we do
  * nothing but remove the temporary files and exit.
  * Otherwise, we sync the temp file and then attempt a preserve.
  * If the preserve succeeds, we unlink our temp files.