Convert some text-based-repaint tests for spv2

LayoutTests/virtual/spv2/fast/repaint/multicol-as-paint-container-expected.txt

Index: LayoutTests/virtual/spv2/fast/repaint/multicol-as-paint-container-expected.txt
diff --git a/LayoutTests/virtual/spv2/fast/repaint/multicol-as-paint-container-expected.txt b/LayoutTests/virtual/spv2/fast/repaint/multicol-as-paint-container-expected.txt
deleted file mode 100644
index 63044f717603aba1aa91267fa74fec2aebf7ab0d..0000000000000000000000000000000000000000
--- a/LayoutTests/virtual/spv2/fast/repaint/multicol-as-paint-container-expected.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "bounds": [800, 600],
-  "children": [
-    {
-      "bounds": [800, 600],
-      "contentsOpaque": true,
-      "drawsContent": true,
-      "repaintRects": [
-        [8, 8, 630, 180],
-        [8, 8, 625, 180]
-      ],
-      "paintInvalidationClients": [
-        "LayoutText #text",
-        "InlineTextBox 'Lorem ipsum'",
-        "InlineTextBox 'dolor sit amet,'",
-        "InlineTextBox 'consectetur'",
-        "InlineTextBox 'adipiscing'",
-        "InlineTextBox 'elit. Fusce'",
-        "InlineTextBox 'varius, metus'",
-        "InlineTextBox 'eu fringilla'",
-        "InlineTextBox 'pulvinar, ipsum'",
-        "InlineTextBox 'sapien'",
-        "InlineTextBox 'ultricies arcu,'",
-        "InlineTextBox 'non condimentum'",
-        "InlineTextBox 'quam est eu'",
-        "InlineTextBox 'purus. Ut nisl'",
-        "InlineTextBox 'libero,'",
-        "InlineTextBox 'suscipit ut leo'",
-        "InlineTextBox 'eget, dapibus'",
-        "InlineTextBox 'ultrices dolor.'",
-        "LayoutMultiColumnSet (anonymous)"
-      ]
-    }
-  ]
-}
-