remove defunct gotmpl stuff as it's now natively supported with helm lsp

.config/nvim/after/ftdetect/gotmpl.vim

@@ -1,3 +0,0 @@
-augroup filetypedetect
-autocmd BufNewFile,BufRead *.tmpl, if search('{{.\+}}', 'nw') | setlocal filetype=gotmpl | endif
-augroup END

.config/nvim/lua/user/tree-sitter.lua

@@ -49,11 +49,3 @@ require'nvim-treesitter.configs'.setup {
 }
 
 local parser_config = require'nvim-treesitter.parsers'.get_parser_configs()
-parser_config.gotmpl = {
-  install_info = {
-    url = "https://github.com/ngalaiko/tree-sitter-go-template",
-    files = {"src/parser.c"}
-  },
-  filetype = "gotmpl",
-  used_by = {"gohtmltmpl", "gotexttmpl", "gotmpl", "yaml"}
-}