Cleanup after enabling all slimming paint for all layout tests

LayoutTests/platform/win/virtual/slimmingpaint/compositing/overflow/text-match-highlight-expected.txt

Index: LayoutTests/platform/win/virtual/slimmingpaint/compositing/overflow/text-match-highlight-expected.txt
diff --git a/LayoutTests/platform/win/virtual/slimmingpaint/compositing/overflow/text-match-highlight-expected.txt b/LayoutTests/platform/win/virtual/slimmingpaint/compositing/overflow/text-match-highlight-expected.txt
deleted file mode 100644
index 1eb5505fc57bf5efa78312657fd88978822cfc1c..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/virtual/slimmingpaint/compositing/overflow/text-match-highlight-expected.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [282, 36, 46, 17],
-        [270, 54, 46, 17],
-        [225, 54, 46, 17],
-        [90, 54, 46, 17],
-        [52, 72, 46, 17],
-        [20, 214, 202, 72],
-        [10, 181, 138, 12],
-        [10, 126, 228, 17]
-      ],
-      "paintInvalidationClients": [
-        "LayoutText #text",
-        "InlineTextBox 'findme'",
-        "LayoutText #text",
-        "InlineTextBox 'findme'",
-        "LayoutText #text",
-        "InlineTextBox 'findme'",
-        "LayoutText #text",
-        "InlineTextBox 'findme'",
-        "LayoutText #text",
-        "InlineTextBox 'findme'",
-        "LayoutSVGInlineText #text",
-        "InlineTextBox 'Can you findme in this boring text?'",
-        "LayoutSVGInlineText #text",
-        "InlineTextBox 'Findme in a typewriter!'",
-        "LayoutSVGInlineText #text",
-        "InlineTextBox 'Findme on a path! Did you findme?'"
-      ]
-    }
-  ]
-}
-