new deleteHostname() CLI broken

was this reviewed/tested???

+    private static boolean deleteHostname(I2PAppContext ctx, String hostname) {
+        try {
+            Destination dest = lookupHostname(I2PAppContext.getGlobalContext(), hostname);
+            if (dest == null)
+                System.err.println("Destination not found!");
+            else {
+                NamingService ns = I2PAppContext.getGlobalContext().namingService();
+                if (ns != null)
+                    return ns.remove(hostname, dest);
+                System.err.print("ns is null");
+            }
+        } catch (I2PSessionException ise) {
+            ise.printStackTrace();
+        }
+        return false;
+    }

ctx passed in but not used; instead you call getGlobalContext() twice more

+        if (args[0].length() == 2) {
+            if (args[0] == "-d") { 
+                deleteHostname(I2PAppContext.getGlobalContext(), args[1]);
+            }

can't use == instead of String.equals() for comparison, this will fail
no need for length == 2 check, it's redundant with the string comparison
there's a fail-out above this for args.length != 1, so this obviously will never work and wasn't tested
no hint of new option in the Usage println
no println for success/failure

Also, this whole thing of modifying an addressbook on a running router is ill-advised, will it even work or could it crash the router? Any changes won't be picked up by the router, perhaps there should be a warning not to do this if router is running.

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