Clean up a few more unused globals.

chrome/service/cloud_print/print_system_cups.cc

Index: chrome/service/cloud_print/print_system_cups.cc
diff --git a/chrome/service/cloud_print/print_system_cups.cc b/chrome/service/cloud_print/print_system_cups.cc
index 18c4d4c3647e128966991c58aef623fd802a414a..1758bd7252c073e571fde57d6d455ebe93476cf9 100644
--- a/chrome/service/cloud_print/print_system_cups.cc
+++ b/chrome/service/cloud_print/print_system_cups.cc
@@ -37,10 +37,6 @@
 
 namespace {
 
-// CUPS specific options.
-const char kCUPSPrinterInfoOpt[] = "printer-info";
-const char kCUPSPrinterStateOpt[] = "printer-state";
-
 // Print system config options.
 const char kCUPSPrintServerURLs[] = "print_server_urls";
 const char kCUPSUpdateTimeoutMs[] = "update_timeout_ms";
@@ -52,9 +48,6 @@ const char kCUPSSupportedMimeTipes[] = "supported_mime_types";
 const char kCUPSDefaultSupportedTypes[] =
     "application/pdf,application/postscript,image/jpeg,image/png,image/gif";
 
-// Default port for IPP print servers.
-const int kDefaultIPPServerPort = 631;
-
 // Time interval to check for printer's updates.
 const int kCheckForPrinterUpdatesMinutes = 5;