So if I want 0V as the lowest note I can remove it?
Define “lowest note”. The standard 3340 config outputs ~1 Hz with no CV in, which isn’t very useful if you plan to listen to the output. 
See here:
The 360k resistor shifts this a few octaves up, into a somewhat more useful range.
Note the datasheet circuit is for 15 V; if you’re using 12 V supplies you need to adjust this (and a few other values). But it’s probably easier to use a coarse tune potentiometer as one CV input, so you can dial in 0V to your liking, as it’s done in the simple 1V/Oct oscillator (and many others):
I couldn’t find any 360k resistors
36 is a standard E24 (5%) value, so shouldn’t be that hard to find (see e.g. tayda) 