chore: disabled "Goal" generation from initial state

modules/generative_grammar/generator.cpp

@@ -35,7 +35,9 @@ void Generator::initialise_state() {
 	}
 	print_line("Writing start & goal");
 	this->state->set_at({ 0, y }, Terminals::Start);
+#if 0
 	this->state->set_at({ this->state->size.x - 1, y }, Terminals::Goal);
+#endif
 }
 
 void Generator::ready() {