Revert "Add named testing interface."

chrome/common/automation_constants.cc

Index: chrome/common/automation_constants.cc
diff --git a/chrome/common/automation_constants.cc b/chrome/common/automation_constants.cc
index 9480254175ace3711c3a9666687518cc2f2fa132..c2538714076aaefee05ccdbc6e084218d84c7071 100644
--- a/chrome/common/automation_constants.cc
+++ b/chrome/common/automation_constants.cc
@@ -5,7 +5,6 @@
 #include "chrome/common/automation_constants.h"
 
 namespace automation {
-
 // JSON value labels for proxy settings that are passed in via
 // AutomationMsg_SetProxyConfig.
 const char kJSONProxyAutoconfig[] = "proxy.autoconfig";
@@ -13,10 +12,4 @@ const char kJSONProxyNoProxy[] = "proxy.no_proxy";
 const char kJSONProxyPacUrl[] = "proxy.pac_url";
 const char kJSONProxyBypassList[] = "proxy.bypass_list";
 const char kJSONProxyServer[] = "proxy.server";
-
-// Named testing interface is used when you want to connect an
-// AutomationProxy to an already-running browser instance.
-const char kNamedInterfacePrefix[] = "NamedTestingInterface:";
-
-}  // namespace automation
-
+}