refactor(lsp): remove lua provider file and rely on lsp-installers settings

lua/cosmic/lsp/providers/init.lua

@@ -62,9 +62,7 @@ lsp_installer.on_server_ready(function(server)
     opts.autostart = false
   end
 
-  if server.name == 'sumneko_lua' then
-    opts = vim.tbl_deep_extend('force', opts, require('cosmic.lsp.providers.lua'))
-  elseif server.name == 'tsserver' then
+  if server.name == 'tsserver' then
     opts = vim.tbl_deep_extend('force', opts, require('cosmic.lsp.providers.tsserver'))
   elseif server.name == 'efm' then
     opts = vim.tbl_deep_extend('force', opts, require('cosmic.lsp.providers.efm'))

lua/cosmic/lsp/providers/lua.lua

@@ -1,32 +0,0 @@
-local sumneko_binary_path = vim.fn.exepath('lua-language-server')
-local sumneko_root_path = vim.fn.fnamemodify(sumneko_binary_path, ':h:h:h')
-
-local runtime_path = vim.split(package.path, ';')
-table.insert(runtime_path, 'lua/?.lua')
-table.insert(runtime_path, 'lua/?/init.lua')
-
-return {
-  cmd = { sumneko_binary_path, '-E', sumneko_root_path .. '/main.lua' },
-  settings = {
-    Lua = {
-      runtime = {
-        -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
-        version = 'LuaJIT',
-        -- Setup your lua path
-        path = runtime_path,
-      },
-      diagnostics = {
-        -- Get the language server to recognize the `vim` global
-        globals = { 'vim' },
-      },
-      workspace = {
-        -- Make the server aware of Neovim runtime files
-        library = vim.api.nvim_get_runtime_file('', true),
-      },
-      -- Do not send telemetry data containing a randomized but unique identifier
-      telemetry = {
-        enable = false,
-      },
-    },
-  },
-}