Update LayoutTest expectation for font-display-intervention.html

Now we do not have any -intervention.html specific flakiness, but
still font-display.html and font-display-intervention.html are a little
flaky on Win7 platform probably due to the same reason.

BUG=571376, 564109

Review-Url: https://codereview.chromium.org/2358543002
Cr-Commit-Position: refs/heads/master@{#419944}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1150,9 +1150,8 @@ crbug.com/546215 [ Android ] fast/inline-block/overflow-clip.html [ Failure ]
 
 crbug.com/548765 http/tests/inspector/console-fetch-logging.html [ Failure Pass ]
 
-crbug.com/564109 [ Win7 ]  http/tests/webfont/font-display.html [ Pass Timeout Failure ]
-
-crbug.com/571376 http/tests/webfont/font-display-intervention.html [ Pass Failure ]
+crbug.com/564109 [ Win7 ]  http/tests/webfont/font-display.html [ Pass Failure ]
+crbug.com/564109 [ Win7 ]  http/tests/webfont/font-display-intervention.html [ Pass Failure ]
 
 crbug.com/575766 http/tests/inspector/resource-tree/resource-tree-frame-add.html [ Timeout Pass ]
 crbug.com/581468 http/tests/inspector/resource-tree/resource-tree-non-unique-url.html [ Pass Failure ]