NO-JIRA: Remove redundant method readCertificates (which had a resource leak).
diff --git a/client/src/main/java/org/apache/qpid/transport/network/security/ssl/SSLUtil.java b/client/src/main/java/org/apache/qpid/transport/network/security/ssl/SSLUtil.java
index d26c8fd..a204d2b 100644
--- a/client/src/main/java/org/apache/qpid/transport/network/security/ssl/SSLUtil.java
+++ b/client/src/main/java/org/apache/qpid/transport/network/security/ssl/SSLUtil.java
@@ -311,15 +311,6 @@
         return ks;
     }
 
-    public static X509Certificate[] readCertificates(URL certFile)
-            throws IOException, GeneralSecurityException
-    {
-        try (InputStream is = certFile.openStream())
-        {
-            return readCertificates(certFile.openStream());
-        }
-    }
-
     public static X509Certificate[] readCertificates(InputStream input)
             throws IOException, GeneralSecurityException
     {