Move old multicol tests to a separate directory.

LayoutTests/fast/multicol/paginate-block-replaced.html

Index: LayoutTests/fast/multicol/paginate-block-replaced.html
diff --git a/LayoutTests/fast/multicol/paginate-block-replaced.html b/LayoutTests/fast/multicol/paginate-block-replaced.html
deleted file mode 100644
index 7f1fa48cde2ecb92e775f3939086308a5829c9a7..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/multicol/paginate-block-replaced.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<div style="-webkit-column-width:300px; column-width:300px; column-fill:auto; border:2px solid black; height:400px">
-This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>
-<img style="height:300px;width:250px;background-color:green;display:block">
-This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>This is some text.<br>
-This is some text.<br>This is some text.<br>This is some text.<br>