Bug 1529708: Remove cruft from meta file. r=jib

Differential Revision: https://phabricator.services.mozilla.com/D28880

--HG--
extra : moz-landing-system : lando

testing/web-platform/meta/webrtc/RTCIceConnectionState-candidate-pair.https.html.ini

@@ -1,4 +0,0 @@
-[RTCIceConnectionState-candidate-pair.https.html]
-  [On ICE connected, getStats() contains a connected candidate-pair]
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1529708
-