Remove mention of inexisting argument. Spotted in relation to bug
581229.
* @callback: callback to call when the request is satisfied
* @user_data: the data to pass to callback function
*
- * Request an asynchronous skip of @count bytes from the stream into the buffer
- * starting at @buffer. When the operation is finished @callback will be called.
+ * Request an asynchronous skip of @count bytes from the stream.
+ * When the operation is finished @callback will be called.
* You can then call g_input_stream_skip_finish() to get the result of the
* operation.
*