Update return types

Author: cursedcoder

doc/authorizations.md

@@ -60,11 +60,11 @@ $authorization = $github->api('authorizations')->reset(1234, 'token');
 #### Revoke an authorization
 
 ```php
-$authorization = $github->api('authorizations')->revoke(1234, 'token');
+$github->api('authorizations')->revoke(1234, 'token');
 ```
 
 #### Revoke all authorizations
 
 ```php
-$authorization = $github->api('authorizations')->revokeAll(1234);
+$github->api('authorizations')->revokeAll(1234);
 ```

lib/Github/Api/Authorizations.php

@@ -103,12 +103,10 @@ public function reset($clientId, $token)
      *
      * @param $clientId
      * @param $token
-     *
-     * @return array
      */
     public function revoke($clientId, $token)
     {
-        return $this->delete('applications/'.rawurlencode($clientId).'/tokens/'.rawurlencode($token));
+        $this->delete('applications/'.rawurlencode($clientId).'/tokens/'.rawurlencode($token));
     }
 
     /**