remove mentioning of vim-airline

README.md

@@ -37,7 +37,7 @@ is guaranteed.**
 + Smarter and faster matching pair management (add, replace or delete) via [vim-sandwich](https://github.com/machakann/vim-sandwich).
 + Fast buffer jump via [hop.nvim](https://github.com/phaazon/hop.nvim).
 + Ultra fast snippet insertion via [Ultisnips](https://github.com/SirVer/ultisnips).
-+ Beautiful status line via [vim-airline](https://github.com/vim-airline/vim-airline).
++ Beautiful status line via [lualine.nvim](https://github.com/nvim-lualine/lualine.nvim).
 + Better quickfix list with [nvim-bqf](https://github.com/kevinhwang91/nvim-bqf).
 + Show search index and count with [nvim-hlslens](https://github.com/kevinhwang91/nvim-hlslens).
 + Command line auto-completion via [wilder.nvim](https://github.com/gelguy/wilder.nvim).

autoload/utils.vim

@@ -27,12 +27,6 @@ function! utils#HasColorscheme(name) abort
   return !empty(globpath(&runtimepath, l:pat))
 endfunction
 
-" Check if an Airline theme exists in runtimepath.
-function! utils#HasAirlinetheme(name) abort
-  let l:pat = printf('autoload/airline/themes/%s.vim', a:name)
-  return !empty(globpath(&runtimepath, l:pat))
-endfunction
-
 " Generate random integers in the range [Low, High] in pure vim script,
 " adapted from https://stackoverflow.com/a/12739441/6064933
 function! utils#RandInt(Low, High) abort

core/options.vim

@@ -76,7 +76,7 @@ set scrolloff=3
 set mouse=nic  " Enable mouse in several mode
 set mousemodel=popup  " Set the behaviour of mouse
 
-" Do not show mode on command line since vim-airline can show it
+" Disable showing current mode on command line since statusline plugins can show it.
 set noshowmode
 
 set fileformats=unix,dos  " Fileformats to use for new files

docs/README.md

@@ -136,10 +136,8 @@ Terminal](https://github.com/microsoft/terminal).
 
 ## Font
 
-Since [Vim-airline](https://github.com/vim-airline/vim-airline) uses several
-Unicode symbols not available in normal font, we need to install [fonts
-here](https://github.com/powerline/fonts) to make vim-airline look pretty. I am using [Hack](https://github.com/powerline/fonts/tree/master/Hack), and it looks
-great. Another great resource for programming font is the [nerd-font](https://github.com/ryanoasis/nerd-fonts) project.
+Since statusline or file explorer plugins often use Unicode symbols not
+available in normal font, we need to install a patched font from the [nerd-fonts](https://github.com/ryanoasis/nerd-fonts) project.
 
 # Install Nvim