@Override
		protected void doRun() {

			SymbolTable symbolTable = program.getSymbolTable();
			Symbol[] symbols = symbolTable.getSymbols(address);
			for (Symbol element : symbols) {
				symProvider.symbolChanged(element);
				refProvider.symbolChanged(element);
			}
		}
Tells a plugin that it is no longer needed.
The plugin should remove itself from anything that
it is registered to and release any resources.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/symtable/SymbolTablePlugin.java