nvim: Drop settings for vim-matchup

We dropped the vim-matchup plugin in 03bd6276d but missed
removing these settings.

nvim/.config/nvim/init.lua

@@ -64,9 +64,6 @@ vim.g.mapleader                     = " "
 vim.g.maplocalleader                = ","
 -- vim-dispatch
 vim.g.dispatch_no_maps              = 1
--- vim-matchup
-vim.g.matchup_matchparen_offscreen  = { method = 'popup', fullwidth = true }
-vim.g.matchup_surround_enabled      = 1
 -- No default mappings for tmux navigator
 vim.g.tmux_navigator_no_mappings    = 1
 -- Write the current buffer, but only if changed before navigating from Vim to tmux pane

nvim/.config/nvim/lua/treesitter.lua

@@ -41,9 +41,6 @@ require'nvim-treesitter.configs'.setup {
     use_virtual_text = true,
     lint_events      = { "BufWrite", "CursorHold" },
   },
-  matchup = {
-    enable = true,
-  },
 }
 
 require "nvim-treesitter.parsers".get_parser_configs().lean = {