Deleting line to cast array as int. It doesn't work.

It's very odd. If x=6.0 then astype(int) would cast it as 5. We don't need to do this casting after all, so removing it. Also cleaning up debug output.
Refocusing the purpose of this function: find systematic form of G.

Deleting steps to create a full rank H matrix; these will be done in a seperate, new function. This function will accept a parity check matrix H and find the systematic form of G. If H is not full rank, then the dependent rows will be deleted.