[nvim] cleanup: remove unused Colorizer plugin

.config/nvim/lua/plugin/packer.lua

@@ -102,12 +102,6 @@ return require("packer").startup(function()
                 config = function() require('nvim-autopairs').setup() end
         }
 
-        -- display colors directly in editor
-        use {
-                "norcalli/nvim-colorizer.lua",
-                cmd = "ColorizerToggle"
-        }
-
 
         -- automatically setup the config after cloning
         if PACKER_BOOTSTRAP then