Don't offset pixel copy roots by location in window

The root is always at 0,0.

PiperOrigin-RevId: 634080781

shadows/framework/src/main/java/org/robolectric/shadows/ShadowPixelCopy.java

@@ -85,16 +85,7 @@ protected static void request(
     if (srcRect != null && srcRect.isEmpty()) {
       throw new IllegalArgumentException("sourceRect is empty");
     }
-    View view = source.getDecorView();
-    Rect adjustedSrcRect = null;
-    if (srcRect != null) {
-      adjustedSrcRect = new Rect(srcRect);
-      int[] locationInWindow = new int[2];
-      view.getLocationInWindow(locationInWindow);
-      // offset the srcRect by the decor view's location in the window
-      adjustedSrcRect.offset(-locationInWindow[0], -locationInWindow[1]);
-    }
-    takeScreenshot(view, dest, adjustedSrcRect);
+    takeScreenshot(source.getDecorView(), dest, srcRect);
     alertFinished(listener, listenerThread, PixelCopy.SUCCESS);
   }