lv_group: revert accidentally added merge fron dev-5.3

Author: kisvegabor

lv_core/lv_group.c

@@ -23,7 +23,6 @@
  **********************/
 static void style_mod_def(lv_style_t * style);
 static void style_mod_edit_def(lv_style_t * style);
-static void lv_group_refocus(lv_group_t *g);
 
 /**********************
  *  STATIC VARIABLES
@@ -93,7 +92,7 @@ void lv_group_add_obj(lv_group_t * group, lv_obj_t * obj)
     /*If the object is already in a group and focused then defocuse it*/
     if(obj->group_p) {
         if(lv_obj_is_focused(obj)) {
-            lv_group_refocus(obj->group_p);
+            lv_group_focus_next(obj->group_p);
 
             LV_LOG_INFO("group: assign object to an other group");
         }
@@ -108,7 +107,7 @@ void lv_group_add_obj(lv_group_t * group, lv_obj_t * obj)
     /* If the head and the tail is equal then there is only one object in the linked list.
      * In this case automatically activate it*/
     if(lv_ll_get_head(&group->obj_ll) == next) {
-        lv_group_refocus(group);
+        lv_group_focus_next(group);
     }
 }
 
@@ -122,16 +121,8 @@ void lv_group_remove_obj(lv_obj_t * obj)
     if(g == NULL) return;
     if(g->obj_focus == NULL) return;        /*Just to be sure (Not possible if there is at least one object in the group)*/
 
-    /*Focus on the next object*/
     if(*g->obj_focus == obj) {
-        /*If this is the only object in the group then focus to nothing.*/
-        if(lv_ll_get_head(&g->obj_ll) == g->obj_focus && lv_ll_get_tail(&g->obj_ll) == g->obj_focus) {
-            (*g->obj_focus)->signal_func(*g->obj_focus, LV_SIGNAL_DEFOCUS, NULL);
-        }
-        /*If there more objects in the group then focus to the next/prev object*/
-        else {
-            lv_group_refocus(g);
-        }
+        lv_group_focus_next(g);
     }
 
     /* If the focuses object is still the same then it was the only object in the group but it will be deleted.
@@ -329,17 +320,6 @@ void lv_group_set_click_focus(lv_group_t * group, bool en)
     group->click_focus = en ? 1 : 0;
 }
 
-void lv_group_set_refocus_policy(lv_group_t * group, lv_group_refocus_policy_t policy) {
-    group->refocus_policy = policy & 0x01;
-}
-
-static void lv_group_refocus(lv_group_t *g) {
-	if(g->refocus_policy == LV_GROUP_REFOCUS_POLICY_NEXT)
-		lv_group_focus_next(g);
-	else if(g->refocus_policy == LV_GROUP_REFOCUS_POLICY_PREV)
-		lv_group_focus_prev(g);
-}
-
 /**
  * Modify a style with the set 'style_mod' function. The input style remains unchanged.
  * @param group pointer to group