Bug 1546396: Disable this test entirely, because we don't support what it tests at all. r=jib

Differential Revision: https://phabricator.services.mozilla.com/D28878

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

testing/web-platform/meta/webrtc/RTCPeerConnection-connectionState.https.html.ini

@@ -1,17 +1,3 @@
 [RTCPeerConnection-connectionState.https.html]
-  expected: TIMEOUT
-  [Initial connectionState should be new]
-    expected: FAIL
-
-  [connectionState transitions to connected via connecting]
-    expected: TIMEOUT
-
-  [connection with one data channel should eventually have transports in connected state]
-    expected: TIMEOUT
-
-  [connection with one data channel should eventually have connected connection state]
-    expected: TIMEOUT
-
-  [Closing the connection should set connectionState to closed]
-    expected: FAIL
+  disabled: https://bugzilla.mozilla.org/show_bug.cgi?id=1265827