Open
Description
Now that #397 is merged, I propose that we remove the DiscreteRV
class
https://github.com/QuantEcon/QuantEcon.py/blob/master/quantecon/discrete_rv.py
Not a good idea to have two sets of code for doing the same thing.
The lectures will all need to be updated accordingly, but this is a good thing, since it encourages our transition to exploiting jit compilation more thoroughly.