Revert "video_output: move release after display"

This reverts commit 710c0472eb.

include/vlc_vout_display.h

@@ -430,6 +430,7 @@ static inline void vout_display_Display(vout_display_t *vd, picture_t *picture)
 {
     if (vd->ops->display != NULL)
         vd->ops->display(vd, picture);
+    picture_Release(picture);
 }
 
 VLC_API

src/video_output/video_output.c

@@ -1634,7 +1634,8 @@ static int RenderPicture(vout_thread_sys_t *vout, bool render_now)
                     NS_FROM_VLC_TICK(system_pts == INT64_MAX ? system_now : system_pts));
         }
     }
-    picture_Release(todisplay);
+    else
+        picture_Release(todisplay);
 
     if (atomic_load(&sys->b_display_avstat))
     {