protected void removeOverlaySpace(String name) {
		AddressSpace space = getAddressSpace(name);
		if (!(space instanceof ProgramOverlayAddressSpace)) {
			throw new IllegalArgumentException("Overlay " + name + " not found");
		}
		removeAddressSpace(name);
	}
Remove an overlay space.
It may be neccessary to invoke {@link #refreshStaleOverlayStatus()} when an overlay is
removed.
@param name overlay space name
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/ProgramAddressFactory.java