public void removeUnviewableAddressRanges(AddressSet addressSet) {
		currentViewAddressSet.delete(addressSet);
		buildMapping();
	}
Removes the given addresses from the set of addresses that get mapped into indexes.  This
is used to remove large number of addresses that are contained in closed data in order to
make scrollbars scroll smoothly.
<P>
The original address set is maintained to determine the gap addresses and also for resetting
the index map to the entire set of addresses
@param addressSet the set of addresses to remove from the set of addresses that get mapped.
Ghidra/Features/Base/src/main/java/ghidra/app/util/viewer/util/AddressIndexMap.java