DBRecord getSymbolRecord(long symbolID) {
		try {
			return adapter.getSymbolRecord(symbolID);
		}
		catch (IOException e) {
			program.dbError(e);
		}
		return 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