refactor(utils): remove unused code

lua/gopher/_utils/init.lua

@@ -1,16 +1,5 @@
 local utils = {}
 
-local TITLE = "gopher.nvim"
-
----@param t table
----@return boolean
-function utils.is_tbl_empty(t)
-  if t == nil then
-    return true
-  end
-  return next(t) == nil
-end
-
 ---@param msg string
 ---@param lvl number
 function utils.deferred_notify(msg, lvl)