elm: Remove elm_box_layout_set from EO

This removes a type from ecore_types.eot
elm_box is legacy. Efl.Ui.Box is the new EO-enabled box.

Ref T5522

src/lib/ecore/ecore_types.eot

@@ -1,4 +1,3 @@
-type @extern Ecore_Cb: __undefined_type; [[Ecore callback type]]
 type @extern Ecore_Task_Cb: __undefined_type; [[Ecore task callback type]]
 
 enum Ecore.Pos_Map

src/lib/elementary/elm_box.c

@@ -555,8 +555,8 @@ _elm_box_unpack_all(Eo *obj, Elm_Box_Data *pd)
    _focus_order_flush(obj, pd);
 }
 
-EOLIAN static void
-_elm_box_layout_set(Eo *obj, Elm_Box_Data *_pd EINA_UNUSED, Evas_Object_Box_Layout cb, const void *data, Ecore_Cb free_data)
+EAPI void
+elm_box_layout_set(Eo *obj, Evas_Object_Box_Layout cb, const void *data, Ecore_Cb free_data)
 {
    ELM_WIDGET_DATA_GET_OR_RETURN(obj, wd);
    if (cb)

src/lib/elementary/elm_box.eo

@@ -93,43 +93,6 @@ class Elm.Box (Elm.Widget)
             vertical: int; [[The vertical space between elements]]
          }
       }
-      @property layout {
-         set {
-            [[Set the layout defining function to be used by the box
-
-              Whenever anything changes that requires the box in $obj to recalculate
-              the size and position of its elements, the function $cb will be called
-              to determine what the layout of the children will be.
-
-              Once a custom function is set, everything about the children layout
-              is defined by it. The flags set by @.horizontal.set and
-              @.homogeneous.set no longer have any meaning, and the values
-              given by @.padding.set and @.align.set are up to this
-              layout function to decide if they are used and how. These last two
-              will be found in the $priv parameter, of type $Evas_Object_Box_Data,
-              passed to $cb. The $Evas_Object the function receives is not the
-              Elementary widget, but the internal Evas Box it uses, so none of the
-              functions described here can be used on it.
-
-              Any of the layout functions in $Evas can be used here, as well as the
-              special \@ref elm_box_layout_transition.
-
-              The final $data argument received by $cb is the same $data passed
-              here, and the $free_data function will be called to free it
-              whenever the box is destroyed or another layout function is set.
-
-              Setting $cb to $null will revert back to the default layout function.
-
-              See also \@ref elm_box_layout_transition.
-
-            ]]
-         }
-         values {
-            cb: Evas_Object_Box_Layout @nullable; [[The callback function used for layout]]
-            data: const(void_ptr) @optional; [[Data that will be passed to layout function]]
-            free_data: Ecore_Cb @optional; [[Function called to free $data]]
-         }
-      }
       @property children {
          get {
             [[Get a list of the objects packed into the box

src/lib/elementary/elm_box_legacy.h

@@ -10,4 +10,38 @@
  */
 EAPI Evas_Object        *elm_box_add(Evas_Object *parent);
 
-#include "elm_box.eo.legacy.h"
+#include "elm_box.eo.legacy.h"
+
+/**
+ * @brief Set the layout defining function to be used by the box
+ *
+ * Whenever anything changes that requires the box in @c obj to recalculate the
+ * size and position of its elements, the function @c cb will be called to
+ * determine what the layout of the children will be.
+ *
+ * Once a custom function is set, everything about the children layout is
+ * defined by it. The flags set by @ref elm_box_horizontal_set and
+ * @ref elm_box_homogeneous_set no longer have any meaning, and the values
+ * given by @ref elm_box_padding_set and @ref elm_box_align_set are up to this
+ * layout function to decide if they are used and how. These last two will be
+ * found in the @c priv parameter, of type @c Evas_Object_Box_Data, passed to
+ * @c cb. The @c Evas_Object the function receives is not the Elementary
+ * widget, but the internal Evas Box it uses, so none of the functions
+ * described here can be used on it.
+ *
+ * Any of the layout functions in @c Evas can be used here, as well as the
+ * special @ref elm_box_layout_transition.
+ *
+ * The final @c data argument received by @c cb is the same @c data passed
+ * here, and the @c free_data function will be called to free it whenever the
+ * box is destroyed or another layout function is set.
+ *
+ * Setting @c cb to @c null will revert back to the default layout function.
+ *
+ * See also @ref elm_box_layout_transition.
+ *
+ * @param[in] cb The callback function used for layout
+ * @param[in] data Data that will be passed to layout function
+ * @param[in] free_data Function called to free @c data
+ */
+EAPI void elm_box_layout_set(Evas_Object *obj, Evas_Object_Box_Layout cb, const void *data, Ecore_Cb free_data);