neovim: Remove neogit

It currently fails and as I don’t use it, it can be removed.

users/simon/modules/neovim/default.nix

@@ -86,7 +86,6 @@ in
       lualine-lsp-progress
       lualine-nvim
       luasnip
-      neogit
       nvim-cmp
       nvim-jdtls
       nvim-lspconfig
@@ -94,7 +93,6 @@ in
       nvim-treesitter.withAllGrammars
       nvim-web-devicons
       plantuml-syntax
-      plenary-nvim
       rainbow_csv
       rust-vim
       tagbar

users/simon/modules/neovim/init.lua

@@ -125,18 +125,6 @@ require('which-key').setup {}
 require('nvim-web-devicons').setup { default = true }
 
 -- Git
-require('plenary') -- otherwise neogit SIGABRTs
-require('neogit').setup {
-    disable_commit_confirmation = true,
-    integrations = {
-        diffview = true,
-    },
-}
-cmd([[
-hi NeogitNotificationInfo guifg=#268bd2
-hi NeogitNotificationWarning guifg=#cb4b16
-hi NeogitNotificationError guifg=#dc322f
-]])
 require('gitsigns').setup {
     -- copied from upstream readme
     on_attach = function(bufnr)