Remove virtual/softwarecompositing suite

LayoutTests/platform/mac/virtual/softwarecompositing/squashing/composited-bounds-for-negative-z-expected.txt

Index: LayoutTests/platform/mac/virtual/softwarecompositing/squashing/composited-bounds-for-negative-z-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/softwarecompositing/squashing/composited-bounds-for-negative-z-expected.txt b/LayoutTests/platform/mac/virtual/softwarecompositing/squashing/composited-bounds-for-negative-z-expected.txt
deleted file mode 100644
index f7ef34807ccd2f58516359a29ad5b51ee8e48ba6..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/virtual/softwarecompositing/squashing/composited-bounds-for-negative-z-expected.txt
+++ /dev/null
@@ -1,70 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "children": [
-        {
-          "bounds": [800, 408],
-          "drawsContent": true,
-          "children": [
-            {
-              "position": [8, 100],
-              "bounds": [10, 10],
-              "contentsOpaque": true,
-              "drawsContent": true,
-              "backgroundColor": "#FF0000"
-            },
-            {
-              "bounds": [800, 408],
-              "drawsContent": true
-            },
-            {
-              "position": [108, 100],
-              "bounds": [300, 300],
-              "children": [
-                {
-                  "bounds": [285, 300],
-                  "children": [
-                    {
-                      "bounds": [285, 1000],
-                      "shouldFlattenTransform": false,
-                      "children": [
-                        {
-                          "shouldFlattenTransform": false
-                        }
-                      ]
-                    }
-                  ]
-                },
-                {
-                  "children": [
-                    {
-                      "position": [285, 0],
-                      "bounds": [15, 300]
-                    }
-                  ]
-                }
-              ]
-            },
-            {
-              "children": [
-                {
-                  "position": [108, 100],
-                  "bounds": [285, 1000]
-                },
-                {
-                  "position": [108, 100],
-                  "bounds": [285, 1000],
-                  "drawsContent": true
-                }
-              ]
-            }
-          ]
-        }
-      ]
-    }
-  ]
-}
-