Remove global formatters and linters

Following commit 724753327, this removes all global formatters and
linters so I can move them into project-specific flake.nix and .nvim.lua
files.

modules/home-manager/coding/neovim/config/plugin/conform.lua

@@ -1,46 +1,5 @@
 local conform = require "conform"
 
 conform.setup {
-  formatters_by_ft = {
-    bash = { "shellcheck" },
-    go = { "gofmt" },
-    javascript = { "prettierd", "prettier", stop_after_first = true },
-    just = { "just" },
-    lua = { "stylua" },
-    nix = { "nixfmt" },
-    php = { "php_cs_fixer", "phpcbf", stop_after_first = true },
-    terraform = { "terraform_fmt" },
-    yaml = { "yamlfmt" },
-  },
-
-  format_on_save = function(bufnr)
-    -- Disable with a global or buffer-local variable.
-    if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
-      return
-    end
-
-    return {
-      lsp_fallback = false,
-      quiet = true,
+  formatters_by_ft = {}
 }
-  end,
-}
-
-vim.api.nvim_create_user_command("FormatDisable", function(args)
-  if args.bang then
-    -- FormatDisable! will disable formatting just for this buffer
-    vim.b.disable_autoformat = true
-  else
-    vim.g.disable_autoformat = true
-  end
-end, {
-  desc = "Disable autoformat-on-save",
-  bang = true,
-})
-
-vim.api.nvim_create_user_command("FormatEnable", function()
-  vim.b.disable_autoformat = false
-  vim.g.disable_autoformat = false
-end, {
-  desc = "Re-enable autoformat-on-save",
-})

modules/home-manager/coding/neovim/config/plugin/lint.lua

@@ -1,14 +1,7 @@
 local lint = require "lint"
 
-lint.linters_by_ft = {
-  dockerfile = { "hadolint" },
-  javascript = { "eslint_d" },
-  json = { "jsonlint" },
-  lua = { "luacheck" },
-  markdown = { "markdownlint" },
-  nix = { "nix" },
-  php = { "php", "phpcs", "phpstan" },
-}
+lint.linters_by_ft = {};
+
 local lint_augroup = vim.api.nvim_create_augroup("lint", { clear = true })
 
 vim.api.nvim_create_autocmd({ "BufEnter", "BufWritePost", "InsertLeave" }, {