neovim: Drop vim-endwise to fix crash with treesitter

Recent updates to neovim and/or its plugins made neovim start to crash
when typing curly braces like {}. I narrowed the issue down to vim-endwise,
which I no longer need since the current languages I use prefer curly
braces over end keywords.

Related: https://github.com/tpope/vim-endwise/issues/144

home/neovim.nix

@@ -577,7 +577,6 @@ in
       vim-jsx-pretty
       vim-vue
       vim-over
-      vim-endwise
       csv-vim
       rust-vim
       yuck-vim