Revert "test mouse optional event sys"

This reverts commit 7dccdd3a.

hw3d/App.cpp

 #include "App.h"
-#include <sstream>
 
 App::App()
 	:
@@ -22,20 +21,6 @@ int App::Go()
 
 void App::DoFrame()
 {
-	while( const auto e = wnd.mouse.Read() )
-	{
-		switch( e->GetType() )
-		{
-		case Mouse::Event::Type::Move:
-		{
-			std::ostringstream oss;
-			oss << "Mouse moved to: (" << e->GetPosX() << "," << e->GetPosY() << ")\n";
-			wnd.SetTitle( oss.str() );
-			break;
-		}
-		}
-	}
-
 	const float c = sin( timer.Peek() ) / 2.0f + 0.5f;
 	wnd.Gfx().ClearBuffer( c,c,1.0f );
 	wnd.Gfx().DrawTestTriangle();