remove this log line, so we can remove the .event property

this is likely the error Dave hit last week, because there was
no .request event set yet for some other reasons that have
been fixed already (the event being put in the wrong map, theirs
instead of us) in the VerificationRequest object.

src/components/structures/MatrixChat.js

@@ -1453,7 +1453,6 @@ export default createReactClass({
 
         if (SettingsStore.isFeatureEnabled("feature_cross_signing")) {
             cli.on("crypto.verification.request", request => {
-                console.log(`MatrixChat got a .request ${request.channel.transactionId}`, request.event.getRoomId());
                 if (request.pending) {
                     ToastStore.sharedInstance().addOrReplaceToast({
                         key: 'verifreq_' + request.channel.transactionId,