xvba_video.c: do not leak but crash

Do not leak subpicture associations, but rather crash so that the bug can be investigated and fixed.

src/xvba_video.c

@@ -216,11 +216,12 @@ int surface_add_association(
                 return 0;
             if (obj_surface->assocs[i]->subpicture == assoc->subpicture) {
                 /* XXX: this should not happen, but replace it in the interim */
-                ASSERT(obj_surface->assocs[i]->surface == assoc->surface);
-                SubpictureAssociationP a = obj_surface->assocs[i];
-                free(a); /* XXX: release previous association */
-                obj_surface->assocs[i] = assoc;
-                return 0;
+                //ASSERT(obj_surface->assocs[i]->surface == assoc->surface);
+                //SubpictureAssociationP a = obj_surface->assocs[i];
+                //free(a); /* XXX: release previous association */
+                //obj_surface->assocs[i] = assoc;
+                abort();
+                return -1;
             }
         }
     }