Move old multicol tests to a separate directory.

LayoutTests/platform/win/fast/multicol/vertical-rl/float-avoidance-expected.txt

Index: LayoutTests/platform/win/fast/multicol/vertical-rl/float-avoidance-expected.txt
diff --git a/LayoutTests/platform/win/fast/multicol/vertical-rl/float-avoidance-expected.txt b/LayoutTests/platform/win/fast/multicol/vertical-rl/float-avoidance-expected.txt
deleted file mode 100644
index 915efcd73906ef7628af5868b065994d2f538b3d..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/fast/multicol/vertical-rl/float-avoidance-expected.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-layer at (0,0) size 800x600
-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x600
-  RenderBlock {HTML} at (0,0) size 800x600
-    RenderBody {BODY} at (8,8) size 784x584
-      RenderBlock (floating) {DIV} at (0,0) size 100x200 [bgcolor=#00FF00]
-layer at (540,8) size 152x435
-  RenderBlock {DIV} at (100,0) size 152x435 [border: (10px solid #000000)]
-    RenderBlock {P} at (26,10) size 100x415
-      RenderText {#text} at (0,0) size 99x415
-        text run at (0,0) width 415: "This technology preview of our award winning next generation"
-        text run at (20,0) width 55: "browser "
-        text run at (20,55) width 360: "is a sign of things to come from Mozilla. Powerful yet easy"
-        text run at (40,0) width 78: "to use. This "
-        text run at (40,78) width 337: "maintenance release provides a few updates based on"
-        text run at (60,0) width 158: "user feedback - including "
-        text run at (60,158) width 257: "changes to the Extension System and icon"
-        text run at (80,0) width 88: "improvements."