diff --git a/src/League/OAuth2/Server/Grant/Implicit.php b/src/League/OAuth2/Server/Grant/Implicit.php
deleted file mode 100644
index 33eb3491..00000000
--- a/src/League/OAuth2/Server/Grant/Implicit.php
+++ /dev/null
@@ -1,90 +0,0 @@
-<?php
-/**
- * OAuth 2.0 implicit grant
- *
- * @package     league/oauth2-server
- * @author      Alex Bilbie <hello@alexbilbie.com>
- * @copyright   Copyright (c) PHP League of Extraordinary Packages
- * @license     http://mit-license.org/
- * @link        http://github.com/php-loep/oauth2-server
- */
-
-namespace League\OAuth2\Server\Grant;
-
-use League\OAuth2\Server\Request;
-use League\OAuth2\Server\Authorization;
-use League\OAuth2\Server\Exception;
-use League\OAuth2\Server\Util\SecureKey;
-use League\OAuth2\Server\Storage\SessionInterface;
-use League\OAuth2\Server\Storage\ClientInterface;
-use League\OAuth2\Server\Storage\ScopeInterface;
-
-/**
- * Client credentials grant class
- */
-class Implicit implements GrantTypeInterface {
-
-    use GrantTrait;
-
-    /**
-     * Grant identifier
-     * @var string
-     */
-    protected $identifier = 'implicit';
-
-    /**
-     * Response type
-     * @var string
-     */
-    protected $responseType = 'token';
-
-    /**
-     * AuthServer instance
-     * @var AuthServer
-     */
-    protected $authServer = null;
-
-    /**
-     * Access token expires in override
-     * @var int
-     */
-    protected $accessTokenTTL = null;
-
-    /**
-     * Complete the client credentials grant
-     * @return array
-     */
-    public function completeFlow()
-    {
-        // Remove any old sessions the user might have
-        $this->authServer->getStorage('session')->deleteSession($authParams['client_id'], 'user', $authParams['user_id']);
-
-        // Generate a new access token
-        $accessToken = SecureKey::make();
-
-        // Compute expiry time
-        $accessTokenExpiresIn = ($this->accessTokenTTL !== null) ? $this->accessTokenTTL : $this->authServer->getAccessTokenTTL();
-        $accessTokenExpires = time() + $accessTokenExpiresIn;
-
-        // Create a new session
-        $sessionId = $this->authServer->getStorage('session')->createSession($authParams['client_id'], 'user', $authParams['user_id']);
-
-        // Create an access token
-        $accessTokenId = $this->authServer->getStorage('session')->associateAccessToken($sessionId, $accessToken, $accessTokenExpires);
-
-        // Associate scopes with the access token
-        foreach ($authParams['scopes'] as $scope) {
-            $this->authServer->getStorage('session')->associateScope($accessTokenId, $scope['id']);
-        }
-
-        $response = array(
-            'access_token'  =>  $accessToken,
-            'token_type'    =>  'Bearer',
-            'expires'       =>  $accessTokenExpires,
-            'expires_in'    =>  $accessTokenExpiresIn,
-        );
-
-        return $response;
-    }
-
-}