[Pidgin] #16768: Remove obsolete MSN features

[Pidgin]

#16768: Remove obsolete MSN features
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 Reporter:  mmcco    |      Owner:  QuLogic
     Type:  task     |     Status:  new
Milestone:           |  Component:  MSN
  Version:  3.0.0hg  |   Keywords:
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 The MSN prpl is huge. [http://ismsndeadyet.com MSN is dead], but some of
 this code will be usable in Skype or new MSN implementations. It would be
 awesome if one of the MSN people could sweep through and point out files
 and features that can't be reused. Aside from shrinking the codebase, this
 would delete a lot of dangerous code that distracts security auditors like
 myself.

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Ticket URL: <https://developer.pidgin.im/ticket/16768>
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