rework topology.d

Author: 9il

source/mir/ndslice/internal.d

@@ -141,21 +141,6 @@ Function prototype
 " ~ pfun ~ "
 _____";
 
-mixin template _DefineRet()
-{
-    alias Ret = typeof(return);
-    mixin _DefineRet_;
-}
-
-mixin template _DefineRet_()
-{
-    static if (hasElaborateAssign!(typeof(Ret._iterator)))
-        Ret ret;
-    else
-        Ret ret = Ret.init;
-}
-
-
 mixin template DimensionsCountCTError()
 {
     static assert(Dimensions.length <= packs[0],