Remove support for deprecated theano.scan.utils.clone copy_inputs argument

theano/scan/utils.py

@@ -173,12 +173,7 @@ def hash_listsDictsTuples(x):
     return hash_value
 
 
-DEPRECATED_ARG = object()
-
-
-def clone(
-    output, replace=None, strict=True, share_inputs=True, copy_inputs=DEPRECATED_ARG
-):
+def clone(output, replace=None, strict=True, share_inputs=True):
     """
     Function that allows replacing subgraphs of a computational graph.
 
@@ -196,18 +191,8 @@ def clone(
         graph. If False, clone them. Note that cloned shared variables still
         use the same underlying storage, so they will always have the same
         value.
-    copy_inputs
-        Deprecated, use share_inputs.
 
     """
-    if copy_inputs is not DEPRECATED_ARG:
-        warnings.warn(
-            "In `clone()` function, the argument `copy_inputs` has been deprecated and renamed into `share_inputs`",
-            category=DeprecationWarning,
-        )
-        assert share_inputs  # since we used `copy_inputs` we should have default value for `share_inputs`
-        share_inputs = copy_inputs
-
     if isinstance(replace, dict):
         items = list(replace.items())
     elif isinstance(replace, (list, tuple)):