Fixed linting issues; updated README

Author: ryanmats

auth/README.md

@@ -27,6 +27,8 @@ methods will work on any Google Cloud API.
   auth-cloud-explicit                      Authenticate to a cloud client library using a service account explicitly.
   auth-api-implicit                        Authenticate to a cloud API using a service account implicitly.
   auth-api-explicit                        Authenticate to a cloud API using a service account explicitly.
+  auth-http-implicit                       Authenticate to a cloud API with HTTP using a service account implicitly.
+  auth-http-explicit                       Authenticate to a cloud API with HTTP using a service account explicitly.
 ```
 6. The following commands are available but will throw a ServiceException when
 run from command-line. The Compute Engine method only works on Compute Engine,

auth/src/auth_http_explicit.php

@@ -23,9 +23,7 @@
 # [START auth_http_explicit]
 namespace Google\Cloud\Samples\Auth;
 
-// Imports the Google Cloud Storage client library, Auth libraries, and Guzzle
-// HTTP libraries.
-use Google\Cloud\Storage\StorageClient;
+# Imports Auth libraries and Guzzle HTTP libraries.
 use Google\Auth\Credentials\ServiceAccountCredentials;
 use Google\Auth\Middleware\AuthTokenMiddleware;
 use GuzzleHttp\Client;

auth/src/auth_http_implicit.php

@@ -23,11 +23,8 @@
 # [START auth_http_implicit]
 namespace Google\Cloud\Samples\Auth;
 
-// Imports the Google Cloud Storage client library, Auth libraries, and Guzzle
-// HTTP libraries.
-use Google\Cloud\Storage\StorageClient;
+# Imports Auth libraries and Guzzle HTTP libraries.
 use Google\Auth\ApplicationDefaultCredentials;
-use Google\Auth\Middleware\AuthTokenMiddleware;
 use GuzzleHttp\Client;
 use GuzzleHttp\HandlerStack;