Revert "evas_table: abort when there is already the option struct"

This reverts commit 008711b3b0.

this breaks elm_table_pack_set() as well as other valid usage and is
not a valid change to the code

src/lib/evas/canvas/evas_object_table.c

@@ -1143,11 +1143,6 @@ _evas_table_pack(Eo *o, Evas_Table_Data *priv, Evas_Object *child, unsigned shor
           }
         optalloc = EINA_TRUE;
      }
-   else
-     {
-        ERR("%p is already added to a table", child);
-        return EINA_FALSE;
-     }
 
    opt->obj = child;
    opt->col = col;