pidgin/pidgin

The vbox is already packed into PidginConversationWindow from glade, don't add it again.

2020-11-24, Gary Kramlich
bbb0be094c2b
The vbox is already packed into PidginConversationWindow from glade, don't add it again.

Testing Done:
Compiled and ran locally, verified the `g_warning` message disappeared.

Reviewed at https://reviews.imfreedom.org/r/252/
subdir('bonjour')
subdir('facebook')
subdir('gg')
subdir('irc')
subdir('jabber')
subdir('novell')
subdir('null')
subdir('sametime')
subdir('silc')
subdir('zephyr')