test: remove unwanted old test and adjust flag value check test

src/cmd_args_test.v

@@ -1,11 +1,6 @@
 module main
 
-fn test_options_returns_blank_if_no_os_args() {
-	options := resolve_options_from_args([])
-	assert options == Options{}
-}
-
 fn test_options_matches_given_args_list_values() {
 	options := resolve_options_from_args(["--debug"])
-	assert options == Options{ debug_mode: true }
+	assert options.debug_mode
 }