Removed duplicated function.

js/modules/loki_p2p_api.js

@@ -74,11 +74,6 @@ class LokiP2pAPI extends EventEmitter {
     return { ...this.contactP2pDetails[pubKey] };
   }
 
-  isContactOnline(pubKey) {
-    const contactDetails = this.contactP2pDetails[pubKey];
-    return !!(contactDetails && contactDetails.isOnline);
-  }
-
   setContactOffline(pubKey) {
     this.emit('offline', pubKey);
     if (!this.contactP2pDetails[pubKey]) {

libloki/test/node/loki_p2p_api_test.js

@@ -70,7 +70,7 @@ describe('LokiP2pAPI', () => {
     it("Should ping a contact if we don't have details for it", done => {
       this.lokiP2pAPI.on('pingContact', pubKey => {
         assert.strictEqual(pubKey, usedKey);
-        assert.isFalse(this.lokiP2pAPI.isContactOnline(usedKey));
+        assert.isFalse(this.lokiP2pAPI.isOnline(usedKey));
         done();
       });
       this.lokiP2pAPI.updateContactP2pDetails(
@@ -87,7 +87,7 @@ describe('LokiP2pAPI', () => {
 
       this.lokiP2pAPI.on('pingContact', pubKey => {
         assert.strictEqual(pubKey, usedKey);
-        assert.isFalse(this.lokiP2pAPI.isContactOnline(usedKey));
+        assert.isFalse(this.lokiP2pAPI.isOnline(usedKey));
         done();
       });
       this.lokiP2pAPI.updateContactP2pDetails(
@@ -105,7 +105,7 @@ describe('LokiP2pAPI', () => {
 
       this.lokiP2pAPI.on('pingContact', pubKey => {
         assert.strictEqual(pubKey, usedKey);
-        assert.isFalse(this.lokiP2pAPI.isContactOnline(usedKey));
+        assert.isFalse(this.lokiP2pAPI.isOnline(usedKey));
         done();
       });
       this.lokiP2pAPI.updateContactP2pDetails(