private void removeVertex(FunctionGraph functionGraph, Address vertexAddress) {
		Graph<FGVertex, FGEdge> graph = functionGraph;
		FGVertex vertex = functionGraph.getVertexForAddress(vertexAddress);
		runSwing(() -> graph.removeVertex(vertex));
		FGController controller = getFunctionGraphController();
		controller.repaint();
	}
Finds an edge that represents the given edge, which may no longer exist with
the same (==) edge instances.
Ghidra/Features/FunctionGraph/src/test.slow/java/ghidra/app/plugin/core/functiongraph/AbstractFunctionGraphTest.java