pidgin/pidgin

Remove purple_chat_user_[sg]et_ui_data.

2020-08-22, Elliott Sales de Andrade
d587dad11411
Remove purple_chat_user_[sg]et_ui_data.

Remove `purple_chat_user_[gs]et_ui_data`.
Remove `deleting-chat-user` signal. It's unused now, and just a substitute for a finalization notification.

Testing Done:
Compile only.

Reviewed at https://reviews.imfreedom.org/r/83/
if ENABLE_DOC
subdir('reference')
endif
if ENABLE_GTK
pidgin_man = configure_file(
input : 'pidgin3.1.in',
output : 'pidgin3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') + '/man1')
endif
if enable_consoleui
finch_man = configure_file(
input : 'finch3.1.in',
output : 'finch3.1',
configuration : man_conf,
install : true,
install_dir : get_option('mandir') + '/man1')
endif