CAT: channel.h: Remove useless comments at the beginning of the file

[davidker]

Really, these comments would actually make sense to people in the kernel?

/*

• Whenever this file is changed a corresponding change must be made in
• the Console/ServicePart/visordiag_early/supervisor_channel.h file
• which is needed for Linux kernel compiles. These two files must be
• in sync. */

The referenced file doesn't even exist, why it could have just been named Billy!

/* define the following to prevent include nesting in kernel header

• files of similar abbreviated content */

If the kernel has similar abgreviated content, it should be used. And I don't even know what this comment is talking about anymore.

Complexity: 0