Remove unit step from range

Sourcery refactoring id: remove-unit-step-from-range

Description:

Replace range(x, y, 1) with range(x, y)

Before:

for i in range(y, len(x), 1):
    do_t()

After:

for i in range(y, len(x)):
    do_t()

Explanation:

The default step value for a call to range() is 1, so it is unnecessary to explicitly define it. This refactoring removes this argument, slightly shortening the code.