Remove obsolete struct ast_channel note.

The opaquing the ast_channel struct no longer requires .cleancount to be
changed when the struct is changed.

* Bump .cleancount value one last time because of struct ast_channel for
old times sake.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@369489 65c4cc65-6c06-0410-ace0-fbb531ad65f3

.cleancount

@@ -1,3 +1 @@
-39
-
-
+40

main/channel_internal_api.c

@@ -47,9 +47,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 /*!
  * \brief Main Channel structure associated with a channel.
  *
- * \note XXX It is important to remember to increment .cleancount each time
- *       this structure is changed. XXX
- *
  * \note When adding fields to this structure, it is important to add the field
  *       'in position' with like-aligned fields, so as to keep the compiler from
  *       having to add padding to align fields. The structure's fields are sorted