pidgin/pidgin

Fix a double free in jabber/message.c and silence a warning
release-2.x.y
2021-09-23, Gary Kramlich
740dafa46e5e
Fix a double free in jabber/message.c and silence a warning

JabberBuddyResource is handled internally, but it's free function, which is static, does in fact free the thread_id as well.

Testing Done:
Compiled

Bugs closed: PIDGIN-17547

Reviewed at https://reviews.imfreedom.org/r/932/
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