Remove set_size, unused

src/allmydata/immutable/encode.py

@@ -711,6 +711,3 @@ class Encoder(object):
         return self.uri_extension_data
     def get_uri_extension_hash(self):
         return self.uri_extension_hash
-
-    def set_size(self, size):
-        raise NotImplementedError()

src/allmydata/interfaces.py

@@ -1825,11 +1825,6 @@ class IEncoder(Interface):
     willing to receive data.
     """
 
-    def set_size(size):
-        """Specify the number of bytes that will be encoded. This must be
-        peformed before get_serialized_params() can be called.
-        """
-
     def set_encrypted_uploadable(u):
         """Provide a source of encrypted upload data. 'u' must implement
         IEncryptedUploadable.