Removed expected Trusty dbg failure after fix.

R=rjkroege@chromium.org
BUG=675055

Review-Url: https://codereview.chromium.org/2586393002
Cr-Commit-Position: refs/heads/master@{#439723}

third_party/WebKit/LayoutTests/TestExpectations

@@ -2231,7 +2231,6 @@ crbug.com/674720 [ Debug Trusty ] http/tests/loading/preload-img-test.html [ Pas
 # Added 2016-12-16
 crbug.com/674858 [ Linux ] virtual/threaded/printing/offscreencanvas-2d-printing.html [ Pass Failure Crash ]
 crbug.com/674858 [ Linux ] virtual/threaded/printing/offscreencanvas-webgl-printing.html [ Pass Failure Crash ]
-crbug.com/675055 [ Trusty Debug ] virtual/android/fullscreen/full-screen-stacking-context.html [ Failure ]
 
 # for Skia DEPS roll
 crbug.com/674509   compositing/overlap-blending/reflection-opacity-huge.html [ NeedsRebaseline ]