Migrate svg layout tests to use slimming paint by default

LayoutTests/platform/win/virtual/slimmingpaint/svg/custom/scrolling-embedded-svg-file-image-repaint-problem-expected.txt

Index: LayoutTests/platform/win/virtual/slimmingpaint/svg/custom/scrolling-embedded-svg-file-image-repaint-problem-expected.txt
diff --git a/LayoutTests/platform/win/virtual/slimmingpaint/svg/custom/scrolling-embedded-svg-file-image-repaint-problem-expected.txt b/LayoutTests/platform/win/virtual/slimmingpaint/svg/custom/scrolling-embedded-svg-file-image-repaint-problem-expected.txt
deleted file mode 100644
index 72818e9dc406a2f51452fdc8f9bf4a3ca15c1a50..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/virtual/slimmingpaint/svg/custom/scrolling-embedded-svg-file-image-repaint-problem-expected.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  "bounds": [1026, 1036],
-  "children": [
-    {
-      "bounds": [1026, 1036],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [381, 1007, 53, 29],
-        [24, 1012, 737, 20],
-        [24, 1012, 737, 20],
-        [24, 1007, 737, 29],
-        [24, 1007, 737, 29]
-      ],
-      "paintInvalidationClients": [
-        "InlineTextBox 'pservers-pattern-01-b \u2190'",
-        "InlineTextBox '\n'",
-        "InlineTextBox 'index'",
-        "InlineTextBox '\n'",
-        "InlineTextBox '\u2192 script-handle-01-b'",
-        "RootInlineBox",
-        "LayoutBlockFlow DIV class='linkbar'",
-        "LayoutBlockFlow P",
-        "LayoutInline A",
-        "InlineFlowBox"
-      ]
-    }
-  ]
-}
-