Efl.Ui.Animation_View: remove double free

Efl.Ui.Animation_View: remove double free

Following step makes SIGABORT by double free.
   1. elm_animation_view_add
   2. elm_animation_view_file_set
   3. evas_object_del

The first free occurs in
(gdb) bt
#0  eina_stringshare_del
#1  _efl_ui_animation_view_efl_canvas_group_group_del
#2  efl_canvas_group_del
#3  evas_object_smart_del
#4  _efl_canvas_object_efl_object_invalidate
#5  efl_invalidate
#6  _efl_ui_widget_efl_object_invalidate
#7  efl_invalidate
#8  _efl_invalidate
#9  _efl_object_parent_set
#10 efl_parent_set
#11 efl_parent_set
#12 efl_del
#13 elm_main
#14 main

the second free occurs in
(gdb) bt
#0  eina_stringshare_del
#1  _efl_file_efl_object_destructor
#2  efl_destructor
#3  efl_destructor
#4  _efl_del_internal
#5  _efl_unref_internal
#6  efl_del
#7  evas_object_del
#8  _efl_ui_widget_efl_canvas_group_group_del
#9  efl_canvas_group_del
#10 efl_canvas_group_del
#11 evas_object_smart_del
#12 _efl_canvas_object_efl_object_invalidate
#13 efl_invalidate
#14 _efl_ui_widget_efl_object_invalidate
#15 efl_invalidate
#16 _efl_invalidate
#17 _efl_object_parent_set
#18 efl_parent_set
#19 efl_parent_set
#20 efl_del
#21 elm_main
#22 main

Change-Id: Iabedaacc6fc82f87e5d4d78bc4a20030419148aa