Remove virtual/softwarecompositing suite

LayoutTests/platform/mac/virtual/softwarecompositing/overflow/scrolling-content-clip-to-viewport-expected.txt

Index: LayoutTests/platform/mac/virtual/softwarecompositing/overflow/scrolling-content-clip-to-viewport-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/softwarecompositing/overflow/scrolling-content-clip-to-viewport-expected.txt b/LayoutTests/platform/mac/virtual/softwarecompositing/overflow/scrolling-content-clip-to-viewport-expected.txt
deleted file mode 100644
index 41a582adc87d511762a1a43639e24dd425d72bc8..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/virtual/softwarecompositing/overflow/scrolling-content-clip-to-viewport-expected.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "children": [
-        {
-          "bounds": [320, 340],
-          "children": [
-            {
-              "bounds": [305, 325],
-              "children": [
-                {
-                  "bounds": [305, 1224],
-                  "shouldFlattenTransform": false,
-                  "children": [
-                    {
-                      "shouldFlattenTransform": false
-                    }
-                  ]
-                }
-              ]
-            },
-            {
-              "children": [
-                {
-                  "position": [0, 325],
-                  "bounds": [305, 15]
-                },
-                {
-                  "position": [305, 0],
-                  "bounds": [15, 325]
-                },
-                {
-                  "position": [305, 325],
-                  "bounds": [15, 15],
-                  "drawsContent": true
-                }
-              ]
-            }
-          ]
-        },
-        {
-          "position": [10, 10],
-          "bounds": [284, 1204],
-          "contentsOpaque": true,
-          "drawsContent": true,
-          "backgroundColor": "#C0C0C0"
-        }
-      ]
-    }
-  ]
-}
-