Remove stale platform-specific expectations

LayoutTests/platform/win/editing/selection/4866671-expected.txt

Index: LayoutTests/platform/win/editing/selection/4866671-expected.txt
diff --git a/LayoutTests/platform/win/editing/selection/4866671-expected.txt b/LayoutTests/platform/win/editing/selection/4866671-expected.txt
deleted file mode 100644
index ae963df397aa4c65ea44698f056ba4fe765d8dfa..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/editing/selection/4866671-expected.txt
+++ /dev/null
@@ -1,23 +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 {P} at (0,0) size 784x20
-        RenderText {#text} at (0,0) size 587x19
-          text run at (0,0) width 415: "This tests caret movement through -webkit-user-select:none content. "
-          text run at (415,0) width 172: "The caret should move over "
-        RenderInline {B} at (0,0) size 24x19
-          RenderText {#text} at (587,0) size 24x19
-            text run at (587,0) width 24: "yyy"
-        RenderText {#text} at (611,0) size 4x19
-          text run at (611,0) width 4: "."
-      RenderBlock {DIV} at (0,36) size 784x20
-        RenderText {#text} at (0,0) size 7x19
-          text run at (0,0) width 7: "x"
-        RenderInline {SPAN} at (0,0) size 24x19
-          RenderText {#text} at (7,0) size 24x19
-            text run at (7,0) width 24: "yyy"
-        RenderText {#text} at (31,0) size 7x19
-          text run at (31,0) width 7: "x"
-caret: position 0 of child 2 {#text} of child 2 {DIV} of body