talkatu/talkatu

Remove code for no-longer supported GTK

2021-10-09, Elliott Sales de Andrade
cdb6fdb07bc4
Remove code for no-longer supported GTK

We require GTK 3.24 now.

Testing Done:
Compile only.

Reviewed at https://reviews.imfreedom.org/r/1012/
# Building
Talkatu uses [meson](https://mesonbuild.com) as it's build system.
Meson requires you to build in a directory other than the source directory.
To compile you can use the following commands:
```
meson build
cd build
ninja install
```