actually, drop the comments, they don't tell much anyway

Cython/Compiler/ExprNodes.py

@@ -5007,10 +5007,7 @@ class YieldExprNode(ExprNode):
             code.put_init_to_py_none(Naming.retval_cname, py_object_type)
         saved = []
         code.temp_allocator.reset()
-        temps_in_use = code.funcstate.temps_in_use()
-        if temps_in_use:
-            code.putln('/* Save temporary variables */')
-            for cname, type, manage_ref in temps_in_use:
+        for cname, type, manage_ref in code.funcstate.temps_in_use():
             save_cname = code.temp_allocator.allocate_temp(type)
             saved.append((cname, save_cname, type))
             if type.is_pyobject:
@@ -5023,8 +5020,6 @@ class YieldExprNode(ExprNode):
         code.putln("%s->%s.resume_label = %d;" % (Naming.cur_scope_cname, Naming.obj_base_cname, self.label_num))
         code.putln("return %s;" % Naming.retval_cname);
         code.put_label(self.label_name)
-        if saved:
-            code.putln('/* Restore temporary variables */')
         for cname, save_cname, type in saved:
             code.putln('%s = %s->%s;' % (cname, Naming.cur_scope_cname, save_cname))
             if type.is_pyobject: