Remove unused Vim plugins

nix/pkgs/vim-plugins/default.nix

@@ -3,11 +3,8 @@
 {
   conf-vim = callPackage ./conf-vim.nix { };
   edit-alternate-vim = callPackage ./edit-alternate-vim.nix { };
-  nvim-tmux-navigation = callPackage ./nvim-tmux-navigation.nix { };
   standard-vim = callPackage ./standard-vim.nix { };
-  vim-autoread = callPackage ./vim-autoread.nix { };
   vim-caser = callPackage ./vim-caser.nix { };
-  vim-heritage = callPackage ./vim-heritage.nix { };
   vim-textobj-indent = callPackage ./vim-textobj-indent.nix { };
   vim-textobj-xmlattr = callPackage ./vim-textobj-xmlattr.nix { };
 }

nix/pkgs/vim-plugins/nvim-tmux-navigation.nix

@@ -1,13 +0,0 @@
-{ pkgs, ... }:
-
-with pkgs;
-
-vimUtils.buildVimPlugin {
-  name = "nvim-tmux-navigation";
-  src = fetchFromGitHub {
-    owner = "alexghergh";
-    repo = "nvim-tmux-navigation";
-    rev = "4898c98702954439233fdaf764c39636681e2861";
-    sha256 = "sha256-CxAgQSbOrg/SsQXupwCv8cyZXIB7tkWO+Y6FDtoR8xk=";
-  };
-}

nix/pkgs/vim-plugins/vim-autoread.nix

@@ -1,13 +0,0 @@
-{ pkgs, ... }:
-
-with pkgs;
-
-vimUtils.buildVimPlugin {
-  name = "vim-autoread";
-  src = fetchFromGitHub {
-    owner = "djoshea";
-    repo = "vim-autoread";
-    rev = "24061f84652d768bfb85d222c88580b3af138dab";
-    sha256 = "fSADjNt1V9jgAPjxggbh7Nogcxyisi18KaVve8j+c3w=";
-  };
-}

nix/pkgs/vim-plugins/vim-heritage.nix

@@ -1,13 +0,0 @@
-{ pkgs, ... }:
-
-with pkgs;
-
-vimUtils.buildVimPlugin {
-  name = "vim-heritage";
-  src = fetchFromGitHub {
-    owner = "jessarcher";
-    repo = "vim-heritage";
-    rev = "cffa05c78c0991c998adc4504d761b3068547db6";
-    sha256 = "Lebe5V1XFxn4kSZ+ImZ69Vst9Nbc0N7eA9IzOCijFS0=";
-  };
-}