Uh, it means the crosses will come off the building
You really think the city will approve a mosque and then order them to keep crosses on the building? You’re dreaming.
Now I know what context you were thinking of. Of course the crosses will come off - it was basically decommissioned as a Catholic Church in 2010 and a non-Christian entity bought the unused building from whoever actually had ownership.
I was thinking in the bigger context - God and His Plan are so much bigger than an unused church being sold to "the opposition". God has already won and yet we keep getting distracted from our only useful task - carrying the Good News of the Gospel. Sometimes we get so offended over that which is God's to become offended or not, that we end up spinning our wheels in the muck instead of wading out of it and witnessing to those who might be open to hearing the Word - who wins when we do that?