[emacs] update 9 drones and remove general

lib/borg                 master                    v2.0.0-68-ga495a46
lib/doom-modeline        master                     0.4.0-5-gad7c7ae
lib/helm                 master                    v3.0-2-g40a3fd4f
lib/magit                master                     2.13.0-193-g648ea6e5
lib/no-littering         master                    v0.5.14-8-g3f6d290
lib/org                  master                    release_9.1.14-901-g38a89014a
lib/ox-hugo              master                    v0.8-348-g0af60fc
lib/proof-site           master                    v4.4-198-g69066bf2
lib/which-key            master                    v3.3.0-2-gc938bbf