@Override
		public void remove() {
			throw new UnsupportedOperationException();
		}
Removes the external location at the given external address
@param externalAddr the address at which to remove the external location.
@return true if external location was successfully removed else false
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/external/ExternalManagerDB.java