chromeos: Remove unused CrosAddIPConfig/CrosRemoveIPConfig functions

chromeos/dbus/shill_ipconfig_client.cc

Index: chromeos/dbus/shill_ipconfig_client.cc
diff --git a/chromeos/dbus/shill_ipconfig_client.cc b/chromeos/dbus/shill_ipconfig_client.cc
index 7381a2b7c2a7204bab27c0ef5cb2e3f9c46d6f72..79e81f5ca69ef5547c7c7735e891e88940b9ab7b 100644
--- a/chromeos/dbus/shill_ipconfig_client.cc
+++ b/chromeos/dbus/shill_ipconfig_client.cc
@@ -53,8 +53,6 @@ class ShillIPConfigClientImpl : public ShillIPConfigClient {
                              const VoidDBusMethodCallback& callback) OVERRIDE;
   virtual void Remove(const dbus::ObjectPath& ipconfig_path,
                       const VoidDBusMethodCallback& callback) OVERRIDE;
-  virtual bool CallRemoveAndBlock(
-      const dbus::ObjectPath& ipconfig_path) OVERRIDE;
 
  private:
   typedef std::map<std::string, ShillClientHelper*> HelperMap;
@@ -171,13 +169,6 @@ void ShillIPConfigClientImpl::Remove(
   GetHelper(ipconfig_path)->CallVoidMethod(&method_call, callback);
 }
 
-bool ShillIPConfigClientImpl::CallRemoveAndBlock(
-    const dbus::ObjectPath& ipconfig_path) {
-  dbus::MethodCall method_call(flimflam::kFlimflamIPConfigInterface,
-                               flimflam::kRemoveConfigFunction);
-  return GetHelper(ipconfig_path)->CallVoidMethodAndBlock(&method_call);
-}
-
 // A stub implementation of ShillIPConfigClient.
 class ShillIPConfigClientStubImpl : public ShillIPConfigClient {
  public:
@@ -231,11 +222,6 @@ class ShillIPConfigClientStubImpl : public ShillIPConfigClient {
         FROM_HERE, base::Bind(callback, DBUS_METHOD_CALL_SUCCESS));
   }
 
-  virtual bool CallRemoveAndBlock(
-      const dbus::ObjectPath& ipconfig_path) OVERRIDE {
-    return true;
-  }
-
  private:
   // Runs callback with |properties_|.
   void PassProperties(const DictionaryValueCallback& callback) const {