fix(API): Remove irrelevant resamp_rate property
fix(API): Remove irrelevant resamp_rate property

This is only relevant to SignalsWaveform and will be re-added by #161.

Fixes #121.

BREAKING CHANGE: `session.signals` no longer has a `resamp_rate` property.
This never worked anyways so it shouldn't impact anyone.

ni/nixnet-python,epage/nixnet-python