Rip out the .fixup_cloned_sub macro - we don't need it any more. Shou…

…ld make .clone a tiny, tiny bit cheaper by saving a (useless) check.

src/builtins/Mu.pir

@@ -42,24 +42,6 @@ like this.
 
 =cut
 
-.macro fixup_cloned_sub(orig, copy)
-    .local pmc tmp, tmp2
-    tmp = getprop '$!signature', .orig
-    if null tmp goto sub_fixup_done
-    setprop .copy, '$!signature', tmp
-    .local pmc oclass, sclass
-    oclass = typeof .orig
-    sclass = get_class ['Sub']
-    $I0 = issame oclass, sclass
-    if $I0 goto sub_fixup_done
-    tmp = getattribute .orig, ['Sub'], 'proxy'
-    tmp = getprop '$!real_self', tmp
-    if null tmp goto sub_fixup_done
-    tmp2 = getattribute .copy, ['Sub'], 'proxy'
-    setprop tmp2, '$!real_self', tmp
-  sub_fixup_done:
-.endm
-
 .namespace ['Mu']
 .sub 'clone' :method
     .param pmc new_attrs :slurpy :named
@@ -89,7 +71,6 @@ like this.
     goto attrinit_loop
   attrinit_done:
 
-    .fixup_cloned_sub(self, result)
     .return (result)
 .end
 

src/builtins/Routine.pir

@@ -97,7 +97,6 @@ Returns a curried version of self.
     .local pmc orig_wrapper, tmp, tmp2
     orig_wrapper = wrapper
     wrapper = clone orig_wrapper
-    .fixup_cloned_sub(orig_wrapper, wrapper)
     .const 'Sub' $P1 = '!wrap_clholder_helper'
     $P1 = clone $P1
     setprop $P1, '$!wrapper_block', wrapper