codec/avcodec/vaapi: remove debugging asserts.

modules/codec/avcodec/vaapi.c

@@ -428,15 +428,12 @@ static int DisplayPicture( vlc_va_t *p_external, picture_t *p_picture, AVFrame *
 #endif
         return VLC_EGENERIC;
 
-    assert(p_picture->p_sys);
     if (!p_picture->p_sys)
         return VLC_EGENERIC;
 
     if (p_picture->p_sys->b_own_vout)
         return VLC_SUCCESS;
 
-    assert( sizeof(p_picture->p_sys) == sizeof(picture_sys_t) );
-
     /* FindSurface */
     p_picture->p_sys->surface = FindSurface( p_external, i_surface_id );
     if( !p_picture->p_sys->surface )

modules/codec/avcodec/vaapi_x11.c

@@ -757,7 +757,6 @@ static void Render(vout_display_t *vd, picture_t *picture, subpicture_t *subpict
 static void PictureReleaseLocked(picture_t *pic)
 {
     assert(pic);
-    assert(sizeof(pic->p_sys) == sizeof(picture_sys_t));
 
     if (pic->p_sys && pic->p_sys->surface)
     {