Remove duplicate test

spec/help_spec.lua

@@ -7,15 +7,6 @@ describe("tests related to help message generation", function()
       assert.equal([[
 Usage: foo [-h]
 
-Options:
-   -h, --help            Show this help message and exit.]], parser:get_help())
-   end)
-
-   it("does not create extra help options when :prepare is called several times", function()
-      local parser = Parser "foo"
-      assert.equal([[
-Usage: foo [-h]
-
 Options:
    -h, --help            Show this help message and exit.]], parser:get_help())
    end)