Convert fast/multicol/column-count-with-rules (and related) to reftests.

LayoutTests/platform/linux/fast/multicol/vertical-lr/column-count-with-rules-expected.txt

Index: LayoutTests/platform/linux/fast/multicol/vertical-lr/column-count-with-rules-expected.txt
diff --git a/LayoutTests/platform/linux/fast/multicol/vertical-lr/column-count-with-rules-expected.txt b/LayoutTests/platform/linux/fast/multicol/vertical-lr/column-count-with-rules-expected.txt
deleted file mode 100644
index f2d12f100348b928845b3a90fb96c17801dd1a5a..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/linux/fast/multicol/vertical-lr/column-count-with-rules-expected.txt
+++ /dev/null
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