Replace deprecated consumeContent with EntityUtils.consume

Change-Id: I7d9f83b1fae0853b98ba88b64016d0ecc507dc95

github-oauth/src/main/java/com/googlesource/gerrit/plugins/github/oauth/OAuthProtocol.java

diff --git a/github-oauth/src/main/java/com/googlesource/gerrit/plugins/github/oauth/OAuthProtocol.java b/github-oauth/src/main/java/com/googlesource/gerrit/plugins/github/oauth/OAuthProtocol.java
index 37b3fef..fae8219 100644
--- a/github-oauth/src/main/java/com/googlesource/gerrit/plugins/github/oauth/OAuthProtocol.java
+++ b/github-oauth/src/main/java/com/googlesource/gerrit/plugins/github/oauth/OAuthProtocol.java
@@ -19,6 +19,7 @@
 import org.apache.http.client.entity.UrlEncodedFormEntity;
 import org.apache.http.client.methods.HttpPost;
 import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -196,7 +197,7 @@
             + postResponse.getStatusLine());
         response.sendError(HttpURLConnection.HTTP_UNAUTHORIZED,
             "Request for access token not authorised");
-        postResponse.getEntity().consumeContent();
+        EntityUtils.consume(postResponse.getEntity());
         return null;
       }