Removed unused local paramewter from GaussianRandomWalk (#3664)

fonnesbeck · ColCarroll · commit e29aa0fb40a0 · 2019-11-03T19:35:44.000-05:00
diff --git a/pymc3/distributions/timeseries.py b/pymc3/distributions/timeseries.py
@@ -206,7 +206,6 @@ def logp(self, x):
         -------
         TensorVariable
         """
-        tau = self.tau
         sigma = self.sigma
         mu = self.mu
         init = self.init
