ci: celt051 is disabled by autogen.sh, avoid disabling it again
ci: celt051 is disabled by autogen.sh, avoid disabling it again

Acked-by: Frediano Ziglio <55d48b080b2e443e395cde84d2c83b135a4ff48e@redhat.com>

flexVDI/spice-gtk,flexVDI/spice-gtk