Revert "nixvim: add undofile, scrolloff, wrap, yank highlight, j/k optimization"

This reverts commit f8ae5e7d66.

modules/home/nixvim/autocmds.nix

@@ -1,9 +0,0 @@
-{...}: {
-  programs.nixvim.autoCmd = [
-    # yank highlight
-    {
-      event = "TextYankPost";
-      callback.__raw = "function() vim.highlight.on_yank() end";
-    }
-  ];
-}

modules/home/nixvim/default.nix

@@ -6,7 +6,6 @@
   imports = [
     inputs.nixvim.homeModules.nixvim
     ./options.nix
-    ./autocmds.nix
     ./keymaps.nix
     ./language.nix
     ./colorscheme.nix

modules/home/nixvim/keymaps.nix

@@ -19,23 +19,6 @@
   };
 in {
   programs.nixvim.keymaps = [
-    # Search
-    (mk "<Esc>" "<cmd>nohlsearch<CR>" "検索ハイライトを解除")
-
-    # Screen line movement
-    {
-      mode = "n";
-      key = "j";
-      action.__raw = "v:count == 0 and 'gj' or 'j'";
-      options = { silent = true; expr = true; desc = "下へ移動（画面行優先）"; };
-    }
-    {
-      mode = "n";
-      key = "k";
-      action.__raw = "v:count == 0 and 'gk' or 'k'";
-      options = { silent = true; expr = true; desc = "上へ移動（画面行優先）"; };
-    }
-
     # LSP
     (mkRaw "K" "vim.lsp.buf.hover" "LSPエラーのホバー表示")
     (mk "gd" "<cmd>Glance definitions<CR>" "定義へ移動")

modules/home/nixvim/options.nix

@@ -11,12 +11,6 @@
       mouse = "a";
       clipboard = "unnamedplus";
       updatetime = 200;
-      timeoutlen = 300;
-      undofile = true;
-
-      # display
-      wrap = false;
-      scrolloff = 8;
 
       # search
       ignorecase = true;