Remove duplicate algorithm in OCSPAdminServlet.getSigningAlgConfig()

Previously the OCSPAdminServlet.getSigningAlgConfig() returned
a list that contained a duplicate of the first element:

  <alg1><alg1>:<alg2>:<alg3>:...

The code has been modified to remove the duplicate.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2193458

base/ocsp/src/main/java/com/netscape/cms/servlet/admin/OCSPAdminServlet.java

@@ -459,9 +459,7 @@ private void getSigningAlgConfig(NameValuePairs params) {
         StringBuffer algorStr = new StringBuffer();
 
         for (int i = 0; i < algorithms.length; i++) {
-            if (i == 0)
-                algorStr.append(algorithms[i]);
-            else
+            if (i > 0)
                 algorStr.append(":");
             algorStr.append(algorithms[i]);
         }