$OpenBSD$

Use default optimisation options.

--- Makefile.common.orig	Fri Mar  9 06:15:40 2012
+++ Makefile.common	Fri Mar  9 06:16:13 2012
@@ -89,7 +89,6 @@ endif
 
 ifneq (0,$(RELEASE))
     # Debugging disabled
-    debug+= -O$(OPTLEVEL)
     ifneq ($(CC),clang)
         debug+= -funswitch-loops
     endif