pidgin/pidgin

Remove Google Talk from the XMPP plugin.

2021-01-23, Gary Kramlich
645607090674
Remove Google Talk from the XMPP plugin.

Google Talk has long been on the deprecated list and with Hangouts getting
retired in June, it seems fitting that we finally remove this code.

Testing Done:
* Compiled locally
* Ran the unit tests
* Connected an XMPP account
* Had an audio call with Pidgin 2
* Had a video call with Pidgin 2

Reviewed at https://reviews.imfreedom.org/r/435/
/*
* finch
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#if !defined(FINCH_GLOBAL_HEADER_INSIDE) && !defined(FINCH_COMPILATION)
# error "only <finch.h> may be included directly"
#endif
#ifndef FINCH_PREFS_H
#define FINCH_PREFS_H
/**
* SECTION:gntprefs
* @section_id: finch-gntprefs
* @short_description: <filename>gntprefs.h</filename>
* @title: Preferences API
*/
/**********************************************************************
* GNT Preferences API
**********************************************************************/
/**
* finch_prefs_init:
*
* Perform necessary initializations.
*/
void finch_prefs_init(void);
/**
* finch_prefs_show_all:
*
* Show the preferences dialog.
*/
void finch_prefs_show_all(void);
/**
* finch_prefs_show_keyring:
*
* Show the preferences dialog for the selected keyring.
*/
void finch_prefs_show_keyring(void);
/**
* finch_prefs_update_old:
*
* You don't need to know about this.
*/
void finch_prefs_update_old(void);
#endif /* FINCH_PREFS_H */