Remove unnecessary call to inputvars in SMC_KERNEL

Author: ricardoV94

pymc/smc/kernels.py

@@ -28,7 +28,6 @@
 from pymc.aesaraf import (
     compile_pymc,
     floatX,
-    inputvars,
     join_nonshared_inputs,
     make_shared_replacements,
 )
@@ -160,7 +159,7 @@ def __init__(
         self.rng = np.random.default_rng(seed=random_seed)
 
         self.model = modelcontext(model)
-        self.variables = inputvars(self.model.value_vars)
+        self.variables = self.model.value_vars
 
         self.var_info = {}
         self.tempered_posterior = None