Enable slimming paint for fast/repaint

LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-4-expected.txt

Index: LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-4-expected.txt
diff --git a/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-4-expected.txt b/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-4-expected.txt
deleted file mode 100644
index 9acbdb631a854faa06a91d7bb475360b59646907..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/line-flow-with-floats-4-expected.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [372, 447, 48, 16],
-        [368, 440, 53, 59],
-        [8, 380, 418, 119]
-      ],
-      "paintInvalidationClients": [
-        "InlineTextBox 'The players all played at once without waiting\n'",
-        "InlineTextBox 'for'",
-        "RootInlineBox",
-        "InlineTextBox 'turns,\n'",
-        "InlineTextBox 'quarrelling all the while, and fighting for the'",
-        "RootInlineBox",
-        "InlineTextBox 'hedgehogs; and in\n'",
-        "InlineTextBox 'a very short time '",
-        "InlineTextBox 'the Queen'",
-        "RootInlineBox",
-        "InlineTextBox 'was in a furious passion, and went\n'",
-        "InlineTextBox 'stamping about, and'",
-        "RootInlineBox",
-        "InlineTextBox 'shouting \u2018Off with his head!\u2019 or \u2018Off with\n'",
-        "InlineTextBox 'her head!\u2019 about'",
-        "RootInlineBox",
-        "InlineTextBox 'once in a minute.\n'",
-        "RootInlineBox",
-        "LayoutBlockFlow P",
-        "LayoutBlockFlow (floating) SPAN id='greenFloat'",
-        "LayoutText #text",
-        "InlineTextBox 'was in a furious passion, and went\n'",
-        "InlineTextBox 'stamping about, and'",
-        "InlineTextBox 'shouting \u2018Off with his head!\u2019 or \u2018Off with\n'",
-        "InlineTextBox 'her head!\u2019 about once in'",
-        "InlineTextBox 'a minute.\n'"
-      ]
-    }
-  ]
-}
-