first pass of kernel cleanup script for -rc1

[Robert P. J. Day]

  now that -rc1 is out, i've started to run my cleanup scripts again.
for now, the only page that's been updated is this one:

  http://www.crashcourse.ca/wiki/index.php/Unused_CONFIG_variables

which documents CONFIG variables that are defined in some Kconfig file
but are apparently unused anywhere in the tree.  (some false positives
remain, but it's still fairly informative.)

  the good news:  the output is shrinking from release to release.
the bad news:  some of those variables have been there a *long* time.

  in any event, enjoy.  more cleanup updates will be done today.

rday
--

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Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
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