Style: Fix whole-line commented code

They do not play well with clang-format which aligns the `//` part
with the rest of the code block, thus producing badly indented commented code.

core/input_map.cpp

@@ -324,7 +324,7 @@ void InputMap::load_default() {
 	key.key.scancode=KEY_PAGEDOWN;
 	action_add_event("ui_page_down",key);
 
-//	set("display/handheld/orientation", "landscape");
+	//set("display/handheld/orientation", "landscape");
 
 
 }