Remove flit.nvim

Decided I don't like it / don't understand it.

lua/install-plugins.lua

@@ -294,12 +294,6 @@ return require('packer').startup(function(use)
       require('plugins.leap-nvim')
     end,
   }
-  use {
-    'ggandor/flit.nvim',
-    config = function()
-      require('plugins.flit-nvim')
-    end,
-  }
   use 'dstein64/vim-startuptime'
   use {
     'nvim-neotest/neotest',

lua/plugins/flit-nvim.lua

@@ -1,3 +0,0 @@
-require('flit').setup({
-  multiline = false,
-})