Small comment update

theano/gof/cc.py

@@ -1236,8 +1236,7 @@ class CLinker(link.Linker):
             (opK, input_signatureK, output_signatureK),
         }}}
 
-        Note that config hash now uses sha256, and not md5. Function names will
-        updated in a future release to reflect the use of hashlib.sha256.
+        Note that config hash now uses sha256, and not md5.
 
         The signature is a tuple, some elements of which are sub-tuples.
 
@@ -1385,8 +1384,7 @@ class CLinker(link.Linker):
         # can lead to a different compiled file with the same source code.
 
         # NOTE: config md5 is not using md5 hash, but sha256 instead. Function
-        # names and string instances of md5 will be updated at a later release.
-        # See PR#5916 for details.
+        # string instances of md5 will be updated at a later release.
         if insert_config_hash:
             sig.append('md5:' + theano.configparser.get_config_hash())
         else:

theano/gof/cmodule.py

@@ -1252,7 +1252,7 @@ class ModuleCache(object):
                 "Ops. The file is: %s. The key is: %s" % (msg, key_pkl, key))
         # Also verify that there exists no other loaded key that would be equal
         # to this key. In order to speed things up, we only compare to keys
-        # with the same version part and config md5, since we can assume this
+        # with the same version part and config hash, since we can assume this
         # part of the key is not broken.
         for other in self.similar_keys.get(get_safe_part(key), []):
             if other is not key and other == key and hash(other) != hash(key):