Bug 1473686: Enabled SDP unit test CheckSctpmap, r=dminor

The test passes without further changes.

MozReview-Commit-ID: G3TecTmP1QY

--HG--
extra : rebase_source : 4df5aa53730847417175005a15d6c8d79ffba9f3

media/webrtc/signaling/gtest/sdp_unittests.cpp

@@ -3253,7 +3253,6 @@ TEST_P(NewSdpTest, CheckSimulcast) {
 }
 
 TEST_P(NewSdpTest, CheckSctpmap) {
-  SKIP_TEST_WITH_RUST_PARSER; // See Bug 1432922
   ParseSdp(kBasicAudioVideoDataOffer);
   ASSERT_TRUE(!!mSdp) << "Parse failed: " << GetParseErrors();
   ASSERT_EQ(3U, mSdp->GetMediaSectionCount())