Remove unused DELW

blk/037

@@ -10,7 +10,7 @@ Entry management
 ,        n --     Write n in HERE and advance it.
 ALLOT    n --     Move HERE by n bytes
 C,       b --     Write byte b in HERE and advance it.
-DELW     a --     Delete wordref at a. If it shadows another
-                  definition, that definition is unshadowed.
 EMPTY  --         Rewind HERE and CURRENT where they were at
-                  system initialization.                (cont.)
+                  system initialization.            
+
+                                                        (cont.)

blk/434

@@ -6,5 +6,4 @@
     LOOP
     2DROP
 ;
-: DELW 1- 0 SWAP C! ;
 : PREV 3 - DUP @ - ;