pidgin/pidgin

Remove libsoup2 code

14 months ago, Elliott Sales de Andrade
8f7b46f497c6
Remove libsoup2 code

Soup 3 has been required since /r/2068.

Testing Done:
Compiled only.

Reviewed at https://reviews.imfreedom.org/r/2375/
For information on translating Pidgin, libpurple, and Finch, please see
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