Revert of Preparation CL for WebRTC performance test using promise-based getStats

chrome/test/data/webrtc/peerconnection_getstats.js

Index: chrome/test/data/webrtc/peerconnection_getstats.js
diff --git a/chrome/test/data/webrtc/peerconnection_getstats.js b/chrome/test/data/webrtc/peerconnection_getstats.js
index 4a81978a509ccface3678249f71e9bf5f346975f..9eea0b6e924bbbe8e6e04ef942f3361e6d84df7b 100644
--- a/chrome/test/data/webrtc/peerconnection_getstats.js
+++ b/chrome/test/data/webrtc/peerconnection_getstats.js
@@ -254,29 +254,6 @@
         ids.add(stats.id);
       }
       returnToTest('ok-' + JSON.stringify(Array.from(statsTypes.values())));
-    },
-    function(e) {
-      throw failTest('Promise was rejected: ' + e);
-    });
-}
-
-/**
- * Gets the result of the promise-based |RTCPeerConnection.getStats| as a
- * dictionary of RTCStats-dictionaries.
- *
- * Returns "ok-" followed by a JSON-stringified dictionary of dictionaries to
- * the test.
- */
-function getStatsReportDictionary() {
-  peerConnection_().getStats()
-    .then(function(report) {
-      if (report == null || report.size == 0)
-        throw new failTest('report is null or empty.');
-      let reportDictionary = {};
-      for (let stats of report.values()) {
-        reportDictionary[stats.id] = stats;
-      }
-      returnToTest('ok-' + JSON.stringify(reportDictionary));
     },
     function(e) {
       throw failTest('Promise was rejected: ' + e);