diff --git a/src/Auth/OAuth/Stackoverflow.php b/src/Auth/OAuth/Stackoverflow.php
deleted file mode 100644
index 0cbe40337f..0000000000
--- a/src/Auth/OAuth/Stackoverflow.php
+++ /dev/null
@@ -1,133 +0,0 @@
-<?php
-
-namespace Auth\OAuth;
-
-use Auth\OAuth;
-
-// Reference Material 
-// https://api.stackexchange.com/docs/me
-// https://api.stackexchange.com/docs/authentication
-
-class Stackoverflow extends OAuth
-{
-    /**
-     * @var string
-     */
-    protected $version = 'v2.2';
-    /**
-     * @var array
-     */
-    protected $user = [];
-
-    /**
-     * @return string
-     */
-    public function getName(): string
-    {
-        return 'stackoverflow';
-    }
-
-    /**
-     * @return string
-     */
-    public function getLoginURL(): string
-    {
-        return 'https://stackoverflow.com/oauth?'.
-            'client_id='.urlencode($this->appID).
-            '&redirect_uri='.urlencode($this->callback).
-            '&scope=private_info'.
-            '&state='.urlencode(json_encode($this->state));
-    }
-
-
-    /**
-     * @param string $code
-     *
-     * @return string
-     */
-    public function getAccessToken(string $code): string
-    {
-
-        $headers[] = 'Content-Type: application/x-www-form-urlencoded';
-        $accessToken = $this->request(
-            'POST',
-            'https://stackoverflow.com/oauth/access_token/json',
-            $headers,
-            'code=' . urlencode($code) .
-            '&client_id=' . urlencode($this->appID) .
-            '&client_secret=' . urlencode($this->appSecret).
-            '&redirect_uri='.urlencode($this->callback)
-        );
-
-        $accessToken = json_decode($accessToken, true);
-        
-        if (isset($accessToken['access_token'])) {
-            return $accessToken['access_token'];
-        }
-
-        return '';
-    }
-
-    /**
-     * @param string $accessToken
-     *
-     * @return string
-     */
-    public function getUserID(string $accessToken): string
-    {
-        $user = $this->getUser($accessToken);
-
-        if (isset($user['id'])) {
-            return $user['id'];
-        }
-
-        return '';
-    }
-
-    /**
-     * @param string $accessToken
-     *
-     * @return string
-     */
-    public function getUserEmail(string $accessToken): string
-    {
-        $user = $this->getUser($accessToken);
-
-        if (isset($user['email'])) {
-            return $user['email'];
-        }
-
-        return '';
-    }
-
-    /**
-     * @param string $accessToken
-     *
-     * @return string
-     */
-    public function getUserName(string $accessToken): string
-    {
-        $user = $this->getUser($accessToken);
-
-        if (isset($user['name'])) {
-            return $user['name'];
-        }
-
-        return '';
-    }
-
-    /**
-     * @param string $accessToken
-     *
-     * @return array
-     */
-    protected function getUser(string $accessToken): array
-    {
-        if (empty($this->user)) {
-            $user = $this->request('GET', 'https://www.googleapis.com/oauth2/v2/userinfo?access_token='.urlencode($accessToken));
-            $this->user = json_decode($user, true);
-        }
-
-        return $this->user;
-    }
-}