fix: Drop duplicated method.

modules/xmpp/JingleSession.js

@@ -203,12 +203,5 @@ export default class JingleSession extends Listenable {
      */
     acceptOffer(jingle, success, failure) {}
 
-    /**
-     * Returns the JID of the initiator of the jingle session.
-     */
-    _getInitiatorJid() {
-        return this.isInitiator ? this.localJid : this.remoteJid;
-    }
-
     /* eslint-enable no-unused-vars, no-empty-function */
 }

modules/xmpp/JingleSessionPC.js

@@ -3039,8 +3039,6 @@ export default class JingleSessionPC extends JingleSession {
         // We want the two participants in a P2P call to agree on the value of
         // the "suspend" option. We use the JID of the initiator, because it is
         // both randomly selected and agreed upon by both participants.
-        const jid = this._getInitiatorJid();
-
-        return integerHash(jid) % 2 === 0;
+        return integerHash(this.initiatorJid) % 2 === 0;
     }
 }