Simplify calls.

src/Texture Font Generator/Utils.cpp

@@ -101,9 +101,9 @@ void GetBounds( const Surface *pSurf, RECT *out )
 
 
 #pragma include_alias( "zlib/zlib.h", "../zlib/zlib.h" )
-#include "../../extern/libpng/include/png.h"
+#include "png.h"
 #if defined(_MSC_VER)
-#  pragma comment(lib, "../../extern/libpng/lib/libpng.lib")
+#  pragma comment(lib, "libpng.lib")
 #pragma warning(disable: 4611) /* interaction between '_setjmp' and C++ object destruction is non-portable */
 #endif