pidgin/pidgin

Clean up PidginCredentialManager

2021-07-18, Gary Kramlich
671f2442e50e
Clean up PidginCredentialManager

* Remove the unnecessary _provider from a bunch of symbols
* Use g_task_return_new_error
* Some other minor cleanups

Testing Done:
Compiled and ran the unit tests.

Reviewed at https://reviews.imfreedom.org/r/804/
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