libc: removing &(free) and |(free) destructors which aren't really used.

basis/libc/libc.factor

@@ -118,7 +118,6 @@ FUNCTION: size_t strlen ( c-string alien ) ;
 FUNCTION: int system ( c-string command ) ;
 
 DESTRUCTOR: free
-DESTRUCTOR: (free)
 
 ! For libc.linux, libc.windows, libc.macosx...
 << "libc." os name>> append require >>

extra/alien/cxx/demangle/libstdcxx/libstdcxx.factor

@@ -21,6 +21,8 @@ ERROR: invalid-demangle-args name ;
 : mangled-name? ( name -- ? )
     "_Z" head? ;
 
+DESTRUCTOR: (free)
+
 :: demangle ( mangled-name -- c++-name )
     0 ulong <ref> :> length
     0 int <ref> :> status [