diff --git a/lib/browser/api/protocol.js b/lib/browser/api/protocol.js
index 2507acddc83..931e40e4b8c 100644
--- a/lib/browser/api/protocol.js
+++ b/lib/browser/api/protocol.js
@@ -1,16 +1,5 @@
 const app = require('electron').app
 const {createProtocolObject, registerStandardSchemes} = process.atomBinding('protocol')
-let protocol = null
-
-// Warn about removed APIs.
-var logAndThrow = function (callback, message) {
-  console.error(message)
-  if (callback) {
-    return callback(new Error(message))
-  } else {
-    throw new Error(message)
-  }
-}
 
 exports.registerStandardSchemes = function (schemes) {
   if (app.isReady()) {
@@ -20,20 +9,7 @@ exports.registerStandardSchemes = function (schemes) {
 }
 
 app.once('ready', function () {
-  protocol = createProtocolObject()
-  // Be compatible with old APIs.
-  protocol.registerProtocol = function (scheme, handler, callback) {
-    return logAndThrow(callback, 'registerProtocol API has been replaced by the register[File/Http/Buffer/String]Protocol API family, please switch to the new APIs.')
-  }
-
-  protocol.isHandledProtocol = function (scheme, callback) {
-    return logAndThrow(callback, 'isHandledProtocol API has been replaced by isProtocolHandled.')
-  }
-
-  protocol.interceptProtocol = function (scheme, handler, callback) {
-    return logAndThrow(callback, 'interceptProtocol API has been replaced by the intercept[File/Http/Buffer/String]Protocol API family, please switch to the new APIs.')
-  }
-
+  let protocol = createProtocolObject()
   for (let method in protocol) {
     exports[method] = protocol[method].bind(protocol)
   }