Gardening: remove wrong expectations for Win XP

delete LayoutTests/platform/win-xp/svg/filters/feMerge-wrong-input-expected.txt

BUG=
TBR= jianli@chromium.org

Review URL: https://codereview.chromium.org/567983002

git-svn-id: svn://svn.chromium.org/blink/trunk@181888 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/platform/win-xp/svg/filters/feMerge-wrong-input-expected.txt

-layer at (0,0) size 800x600
-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x600
-  RenderSVGRoot {svg} at (0,0) size 800x600
-    RenderSVGHiddenContainer {defs} at (0,0) size 0x0
-      RenderSVGResourceFilter {filter} [id="filter"] [filterUnits=objectBoundingBox] [primitiveUnits=objectBoundingBox]
-    RenderSVGContainer {g} at (0,0) size 800x600
-      [filter="filter"] RenderSVGResourceFilter {filter} at (-80,-60) size 960x720
-    RenderSVGRect {rect} at (0,0) size 100x100 [fill={[type=SOLID] [color=#008000]}] [x=0.00] [y=0.00] [width=100.00] [height=100.00]