Bug 1387894 - Remove expected failure from Event-timestamp-safe-resolution.html. r=smaug

Hey, we fixed it!

Differential Revision: https://phabricator.services.mozilla.com/D38811

Depends on D38810

--HG--
extra : rebase_source : 293f430ceb2a60a6d79ac3ed6efc76804bb1dee0

testing/web-platform/meta/dom/events/Event-timestamp-safe-resolution.html.ini

@@ -1,8 +1,3 @@
 [Event-timestamp-safe-resolution.html]
   disabled:
     if (os == "android") and e10s: bug 1550895 (frequently fails on geckoview)
-  [Event timestamp should not have a resolution better than 5 microseconds]
-    expected:
-      if not debug and not webrender and not e10s and (os == "android") and (version == "Ubuntu 16.04") and (processor == "x86") and (bits == 32): PASS
-      FAIL
-