Remove virtual/softwarecompositing suite

LayoutTests/platform/mac/virtual/softwarecompositing/iframes/become-overlapped-iframe-expected.txt

Index: LayoutTests/platform/mac/virtual/softwarecompositing/iframes/become-overlapped-iframe-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/softwarecompositing/iframes/become-overlapped-iframe-expected.txt b/LayoutTests/platform/mac/virtual/softwarecompositing/iframes/become-overlapped-iframe-expected.txt
deleted file mode 100644
index a84fa074f6e00f022dd757346610f6aef7cc9ce5..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/virtual/softwarecompositing/iframes/become-overlapped-iframe-expected.txt
+++ /dev/null
@@ -1,89 +0,0 @@
-
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "children": [
-        {
-          "children": [
-            {
-              "position": [58, 58],
-              "bounds": [350, 200],
-              "drawsContent": true,
-              "children": [
-                {
-                  "position": [15, 15],
-                  "children": [
-                    {
-                      "bounds": [305, 170],
-                      "children": [
-                        {
-                          "children": [
-                            {
-                              "bounds": [305, 230],
-                              "children": [
-                                {
-                                  "bounds": [305, 230],
-                                  "drawsContent": true,
-                                  "children": [
-                                    {
-                                      "position": [18, 10],
-                                      "bounds": [210, 210],
-                                      "contentsOpaque": true,
-                                      "drawsContent": true,
-                                      "backgroundColor": "#0000FF"
-                                    }
-                                  ]
-                                }
-                              ]
-                            }
-                          ]
-                        }
-                      ]
-                    },
-                    {
-                      "position": [305, 0],
-                      "bounds": [15, 170]
-                    }
-                  ]
-                }
-              ]
-            },
-            {
-              "position": [5, 5],
-              "bounds": [150, 150],
-              "drawsContent": true
-            }
-          ]
-        }
-      ]
-    }
-  ]
-}
-
-
---------
-Frame: '-->'
---------
-{
-  "bounds": [305, 230],
-  "children": [
-    {
-      "bounds": [305, 230],
-      "drawsContent": true,
-      "children": [
-        {
-          "position": [18, 10],
-          "bounds": [210, 210],
-          "contentsOpaque": true,
-          "drawsContent": true,
-          "backgroundColor": "#0000FF"
-        }
-      ]
-    }
-  ]
-}
-