Enable slimming paint for fast/repaint

LayoutTests/platform/win/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-7-expected.txt

Index: LayoutTests/platform/win/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-7-expected.txt
diff --git a/LayoutTests/platform/win/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-7-expected.txt b/LayoutTests/platform/win/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-7-expected.txt
deleted file mode 100644
index 02f52ef5c936487d75f1cac6728180cc3996b7eb..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-7-expected.txt
+++ /dev/null
@@ -1,34 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [14, 404, 355, 36],
-        [14, 404, 355, 35],
-        [8, 386, 418, 54]
-      ],
-      "paintInvalidationClients": [
-        "InlineTextBox 'for turns,\n'",
-        "InlineTextBox 'quarrelling all the while, and fighting'",
-        "RootInlineBox",
-        "InlineTextBox 'for the hedgehogs; and in\n'",
-        "InlineTextBox 'a very short time '",
-        "InlineTextBox ''",
-        "RootInlineBox",
-        "InlineTextBox ''",
-        "InlineTextBox ' was in a furious passion, and went\n'",
-        "InlineTextBox 'stamping'",
-        "RootInlineBox",
-        "LayoutBlockFlow P",
-        "LayoutInline SPAN id='theQueen'",
-        "LayoutText #text",
-        "InlineTextBox 'the'",
-        "InlineTextBox 'Queen'"
-      ]
-    }
-  ]
-}
-