* Remove a g_return_if_fail in _selected_msg_sent_in_progress because this function is allowed now for both, main and msg view window.
* Remove a g_return_if_fail in _selected_msg_sent_in_progress because
this function is allowed now for both, main and msg view window.

pmo-trunk-r2195

community-ssu/modest,community-ssu/modest,community-ssu/modest,community-ssu/modest