Enable slimming paint for fast/repaint

LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/reflection-redraw-expected.txt

Index: LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/reflection-redraw-expected.txt
diff --git a/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/reflection-redraw-expected.txt b/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/reflection-redraw-expected.txt
deleted file mode 100644
index 7e3ac735b7be406c856726c3e1b590ed077360e4..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/linux/virtual/slimmingpaint/fast/repaint/reflection-redraw-expected.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [381, 267, 284, 59],
-        [306, 377, 124, 156],
-        [306, 34, 124, 182],
-        [71, 267, 284, 59]
-      ],
-      "paintInvalidationClients": [
-        "LayoutText #text",
-        "InlineTextBox 'The color of this text'",
-        "InlineTextBox 'in the reflection'",
-        "InlineTextBox 'should be green'",
-        "LayoutText #text",
-        "InlineTextBox 'The color of this text'",
-        "InlineTextBox 'in the reflection'",
-        "InlineTextBox 'should be green'",
-        "LayoutText #text",
-        "InlineTextBox 'The color of this text'",
-        "InlineTextBox 'in the reflection'",
-        "InlineTextBox 'should be green'",
-        "LayoutText #text",
-        "InlineTextBox 'The color of this text'",
-        "InlineTextBox 'in the reflection'",
-        "InlineTextBox 'should be green'"
-      ]
-    }
-  ]
-}
-