Data likely corrupted on quit

[dergoegge]

I ran into this on the test server.

On block : 426901
On block : 427001
On block : 427101
^CUser exit signal received. Exiting...
Program timed out. Force quitting. Data likely corrupted

utreexo/bridgenode/genproofs.go

Lines 209 to 215 in 1a03a98

	// Sometimes there are bugs that make the program run forever.
	// Utreexo binary should never take more than 10 seconds to exit
	go func() {
	time.Sleep(60 * time.Second)
	fmt.Println("Program timed out. Force quitting. Data likely corrupted")
	os.Exit(1)
	}()

I don't suspect that there is a bug but rather that the test server is too slow to finish up in 60sec. I was using the cow forest for which it is normal to take longer when quitting since it has to commit a bunch of data to disk.
We should remove the timeout or increase it.

[kcalvinalvin]

Yeah this has been on my TODO for a bit... if the user's disk is slow, it'll time out.

An easy fix would be to just increase it. Another (more elegant) fix could be to only force quit when given SIGINT twice.