[Pidgin] #3489: Fix crash due to gtkconv->{win, make_sound} dereference without gtkconv NULL-check

[Pidgin]

#3489: Fix crash due to gtkconv->{win,make_sound} dereference without gtkconv
NULL-check
---------------------------+------------------------------------------------
  Reporter:  nix_nix       |       Owner:  sadrul
      Type:  patch         |      Status:  closed
  Priority:  minor         |   Milestone:  2.2.2 
 Component:  pidgin (gtk)  |     Version:  2.2.1 
Resolution:  fixed         |    Keywords:        
   Pending:  0             |  
---------------------------+------------------------------------------------
Changes (by sadrul at pidgin.im):

  * status:  assigned => closed
  * resolution:  => fixed
  * milestone:  => 2.2.2

Comment:

 (In [f9d3abd0678a04291edd671c4e5d87c7217984bb]) Patch from nix_nix to
 remove some dead code. Closes #3489.

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Ticket URL: </ticket/3489#comment:4>
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