qemu: snapshot: Avoid infinite loop if vCPUs can't be resumed

In b3d2a42e I've refactored the code and moved the 'cleanup' label.
Unfortunately the code that was originally in the 'endjob' label and
wanted to jump to cleanup is now in the cleanup label. Remove the jump
and let the function finish.

src/qemu/qemu_driver.c

@@ -14692,7 +14692,6 @@ qemuDomainSnapshotCreateActiveExternal(virConnectPtr conn,
         }
 
         ret = -1;
-        goto cleanup;
     }
 
     if (thaw != 0 &&