--- a/config.mak.uname
+++ b/config.mak.uname
@@ -17,9 +17,6 @@ endif
 # because maintaining the nesting to match is a pain.  If
 # we had "elif" things would have been much nicer...
 
-ifeq ($(uname_M),x86_64)
-	XDL_FAST_HASH = YesPlease
-endif
 ifeq ($(uname_S),OSF1)
 	# Need this for u_short definitions et al
 	BASIC_CFLAGS += -D_OSF_SOURCE
