Revert "Use srcset's resource pixel density to determine intrinsic size"

LayoutTests/fast/hidpi/resources/svg_canvas_helper.js

Index: LayoutTests/fast/hidpi/resources/svg_canvas_helper.js
diff --git a/LayoutTests/fast/hidpi/resources/svg_canvas_helper.js b/LayoutTests/fast/hidpi/resources/svg_canvas_helper.js
deleted file mode 100644
index 6da130242a80d0878a39f55e4c06ef57a7aea155..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/hidpi/resources/svg_canvas_helper.js
+++ /dev/null
@@ -1,20 +0,0 @@
-function printSizes(imageId, outputId) {
-  var image = document.getElementById(imageId);
-  image.addEventListener('load', function() {
-    var output = document.getElementById(outputId);
-    output.innerHTML = 'image stats: '
-        + 'size(' + image.width + ',' + image.height + '), '
-        + 'naturalSize(' + image.naturalWidth + ',' + image.naturalHeight + ')<br/>'
-        + 'image codes: '
-        + image.outerHTML.replace(/</g, "&lt;").replace(/>/g, "&gt;");
-  });
-}
-
-function drawCanvas(imageId, canvasId, canvasWidth, canvasHeight) {
-  var image = document.getElementById(imageId);
-  var canvas = document.getElementById(canvasId);
-  canvas.width = canvasWidth;
-  canvas.height = canvasHeight;
-  var context = canvas.getContext('2d');
-  context.drawImage(image, 0, 0);
-}