Is the clutch pedal return spring and the over center spring the same thing?

I removed the over center spring, didnt seem like there was much tension on it in the up or down position, i could remove it with a small pry bar with a little finesse. With the pedal depressed it didnt seem like the spring opened up much but i guess since its a over center spring i guess it should be most relaxed while the pedal is centered? Anyway i removed it, pedal feels about the same, a good 1 inch of free travel and then you can feel when the clutch is released. I pushed it to the floor and it returns back up with no problems, not sure the over center spring was even doing anything