void symbolAnchoredFlagChanged(Symbol symbol) {
		program.symbolChanged(symbol, ProgramEvent.SYMBOL_ANCHOR_FLAG_CHANGED, symbol.getAddress(),
			symbol, null, null);
	}
Called by the NamespaceManager when a namespace is removed; remove all symbols that have the
given namespace ID.

@param namespaceID ID of namespace being removed
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/SymbolManager.java