Removed completely wrong postblit invocation.

This piece of code was invoking the postblit on the _source_
of the copy operation.

gen/toir.cpp

@@ -2993,24 +2993,6 @@ DValue* StructLiteralExp::toElem(IRState* p)
             Logger::println("zeroing %d padding bytes", implicitPadding);
             voidptr = write_zeroes(voidptr, offset - implicitPadding, offset);
         }
-
-#if DMDV2
-        Type *tb = vd->type->toBasetype();
-        if (tb->ty == Tstruct)
-        {
-            // Call postBlit()
-            StructDeclaration *sd = static_cast<TypeStruct *>(tb)->sym;
-            if (sd->postblit)
-            {
-                FuncDeclaration *fd = sd->postblit;
-                fd->codegen(Type::sir);
-                Expressions args;
-                DFuncValue dfn(fd, fd->ir.irFunc->func, val->getLVal());
-                DtoCallFunction(loc, Type::basic[Tvoid], &dfn, &args);
-            }
-        }
-#endif
-
     }
     // initialize trailing padding
     if (sd->structsize != offset)