drop support for webkit pre-2.10.x (e.g. 2.4)

[codyopel]

Webkitgtk-2.4 is currently unmaintained and and has numerous CVEs.

Packages that use 2.4 require it unfortunately in most cases, however I would still recommend removing 2.4 completely.

2.4 provides libs:
libwebkitgtk-1.0 (gtk+-2)
libwebkitgtk-3.0 (gtk+-3)
libwebkit2gtk-3.0 (gtk+-3)
http://www.linuxfromscratch.org/blfs/view/svn/x/webkitgtk.html

2.10+ provides libs:
libjavascriptcoregtk-4.0
libwebkit2gtk-4.0
http://www.linuxfromscratch.org/blfs/view/svn/x/webkitgtk2.html

Currently, unless an update is released for webkit-2.4, it will also be incompatible with gtk-3.20

Packages that use 2.4:

• empathy (3.0) removed
• evolution (3.0) marked broken
• geary (3.0) removed
• guiratix (1.0) disabled webkit
• shotwell (1.0) marked broken
• jumanji removed package
• liferea
• handbrake
• midori-unwrapped
• vimprobable2-unwrapped
• vimb-unwrapped
• gnucash (1.0)
• luakit
• surf
• uzbl
• xiphos
• eclipse
• dwb (1.0)(3.0)
• claws-mail
• osmo
• miro

https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/S3VHBCPMPVZ3NBKR7FQZQE6HBUHVEZ3D/

cc NixOS/nixpkgs#12023

[codyopel]

50efa9a removes webkit from guitarix

[domenkozar]

See also NixOS/nixpkgs#18312