nvim: plugins: Drop vim-pandoc

Drop vim-pandoc as we want to move to syntax highlighting via
treesitter.

nvim/.config/nvim/after/ftplugin/markdown.vim

@@ -1,17 +1,4 @@
-setlocal spell
-setlocal syntax=markdown.pandoc
-
-let g:pandoc#modules#disabled               = ["folding"]
-let g:pandoc#filetypes#handled              = ["pandoc", "markdown"]
-let g:pandoc#filetypes#pandoc_markdown      = 1
-let g:pandoc#syntax#conceal#use             = 0
-let g:pandoc#syntax#conceal#urls            = 0
-let g:pandoc#keyboard#sections#header_style = "a"
-let g:pandoc#keyboard#use_default_mappings  = 1
-let g:pandoc#compiler#command               = "pandoc"
-let g:pandoc#formatting#textwidth           = 79
-let g:pandoc#formatting#mode                = "hA"
-let g:pandoc#completion#bib#mode            = 'citeproc'
-let g:pandoc#syntax#codeblocks#embeds#langs = ["c", "rust", "haskell", "literatehaskell=lhaskell", "bash=sh"]
+setlocal nospell
+setlocal textwidth=80
 
 autocmd! BufWritePost <buffer> lua require('lint').try_lint()

nvim/.config/nvim/after/plugin/nvim-lint.lua

@@ -7,7 +7,6 @@ nvim_lint.linters_by_ft = {
   javascript = { 'eslint' },
   lua        = { 'luacheck' },
   markdown   = { 'vale' },
-  pandoc     = { 'vale' },
   python     = { 'pylint', 'mypy', 'flake8' },
   sh         = { 'shellcheck' },
   typescript = { 'eslint' },

nvim/.config/nvim/lua/plugins.lua

@@ -109,8 +109,6 @@ local init = function ()
   }
   -- All writing needs
   use 'lervag/vimtex'
-  use 'vim-pandoc/vim-pandoc'
-  use 'vim-pandoc/vim-pandoc-syntax'
   -- Dhall
   use 'vmchale/dhall-vim'
   -- For statusline