refactor(tazjin/emacs): remove telephone-line

I don't really like this package, it's kinda wonky, and now that part
of my mode line logic is in the tab-bar, it's no longer needed.

Change-Id: I4791a75e5ce2f0c49ef0d239cadf6a4f81c73636
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10171
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

users/tazjin/emacs/config/init.el

@@ -76,8 +76,6 @@
 (use-package rainbow-mode)
 (use-package s)
 (use-package string-edit-at-point)
-
-(use-package telephone-line) ;; configuration happens outside of use-package
 (use-package term-switcher)
 
 (use-package undo-tree
@@ -256,7 +254,6 @@
                  modes
                  bindings
                  eshell-setup))
-(telephone-line-setup)
 (ace-window-display-mode)
 
 ;; If a local configuration library exists, it should be loaded.