Move the opaque type sslsocket() out of include/types.hrl.

include/types.hrl

@@ -16,7 +16,6 @@
 	{takeover, Node::node()} | {failover, Node::node()}.
 
 -type posix() :: atom().
--opaque sslsocket() :: term().
 -type port_number() :: 0..65535.
 
 -type bindings() :: list({Key::atom(), Value::string()}).

src/cowboy_ssl_transport.erl

@@ -16,6 +16,8 @@
 -export([name/0, messages/0, listen/1, accept/2, recv/3, send/2, setopts/2,
 	controlling_process/2, peername/1, close/1]). %% API.
 
+-opaque sslsocket() :: term().
+
 -include("include/types.hrl").
 
 %% API.