Remove hack for ImageAboutWindow size, no longer needed

dgl/src/ImageAboutWindow.cpp

@@ -16,13 +16,6 @@
 
 #include "../ImageAboutWindow.hpp"
 
-// FIXME: 32bit hack
-#if ! (defined (__LP64__) || defined (_LP64) || defined(WIN64) || defined(_WIN64) || defined(__WIN64__))
-# define PAD_SIZE +1
-#else
-# define PAD_SIZE
-#endif
-
 START_NAMESPACE_DGL
 
 // -----------------------------------------------------------------------
@@ -33,7 +26,7 @@ ImageAboutWindow::ImageAboutWindow(App& app, Window& parent, const Image& image)
       fImgBackground(image)
 {
     Window::setResizable(false);
-    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+    Window::setSize(image.getWidth(), image.getHeight());
     Window::setTitle("About");
 }
 
@@ -43,14 +36,14 @@ ImageAboutWindow::ImageAboutWindow(Widget* widget, const Image& image)
       fImgBackground(image)
 {
     Window::setResizable(false);
-    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+    Window::setSize(image.getWidth(), image.getHeight());
     Window::setTitle("About");
 }
 
 void ImageAboutWindow::setImage(const Image& image)
 {
     fImgBackground = image;
-    Window::setSize(image.getWidth(), image.getHeight() PAD_SIZE);
+    Window::setSize(image.getWidth(), image.getHeight());
 }
 
 void ImageAboutWindow::onDisplay()