@Override
	public boolean isValidParent(Namespace parent) {
		return super.isValidParent(parent) &&
			SymbolType.LABEL.isValidParent(symbolMgr.getProgram(), parent, address, isExternal());
	}
Delete code/label symbol
@param keepReferences if false all references to this symbols address will be removed,
otherwise associated references will simply be disassociated following symbol removal
(see {@link SymbolManager#doRemoveSymbol(SymbolDB)}.
@return true if symbol successfully removed
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/CodeSymbol.java