Fix some socket docs issues, remove unused typedefs

pointed out by Matthias

gio/gioenums.h

@@ -1331,7 +1331,7 @@ typedef enum {
  *   is still in the future
  * @G_TLS_CERTIFICATE_EXPIRED: The certificate has expired
  * @G_TLS_CERTIFICATE_REVOKED: The certificate has been revoked
- *   according to the #GTlsContext's certificate revocation list.
+ *   according to the #GTlsConnection's certificate revocation list.
  * @G_TLS_CERTIFICATE_INSECURE: The certificate's algorithm is
  *   considered insecure.
  * @G_TLS_CERTIFICATE_GENERIC_ERROR: Some other error occurred validating

gio/giotypes.h

@@ -205,11 +205,8 @@ typedef struct _GThreadedSocketService                      GThreadedSocketServi
 typedef struct _GThemedIcon                   GThemedIcon;
 typedef struct _GTlsCertificate               GTlsCertificate;
 typedef struct _GTlsClientConnection          GTlsClientConnection; /* Dummy typedef */
-typedef struct _GTlsClientContext             GTlsClientContext; /* Dummy typedef */
 typedef struct _GTlsConnection                GTlsConnection;
-typedef struct _GTlsContext                   GTlsContext;
 typedef struct _GTlsServerConnection          GTlsServerConnection; /* Dummy typedef */
-typedef struct _GTlsServerContext             GTlsServerContext; /* Dummy typedef */
 typedef struct _GVfs                          GVfs; /* Dummy typedef */
 
 /**

gio/gproxyresolver.c

@@ -39,7 +39,7 @@
  * @include: gio/gio.h
  *
  * #GProxyResolver provides synchronous and asynchronous network proxy
- * resolution. #GProxyResolver is used within #GClientSocket through
+ * resolution. #GProxyResolver is used within #GSocketClient through
  * the method g_socket_connectable_proxy_enumerate().
  */
 

gio/gthreadedsocketservice.c

@@ -259,7 +259,7 @@ g_threaded_socket_service_class_init (GThreadedSocketServiceClass *class)
  *   handling incoming clients, -1 means no limit
  *
  * Creates a new #GThreadedSocketService with no listeners. Listeners
- * must be added with g_socket_service_add_listeners().
+ * must be added with one of the #GSocketListener "add" methods.
  *
  * Returns: a new #GSocketService.
  *