manager: remove unused interface

The manager doesn't use the interface being passed in, so remove it.

Change-Id: I1ebb07a7fa109d41a0a06772c5229b896f4352f3
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/manager.hpp b/manager.hpp
index 380f888..82a3fd4 100644
--- a/manager.hpp
+++ b/manager.hpp
@@ -60,9 +60,8 @@
      *  @param[in] busname - The DBus busname to own.
      *  @param[in] root - The DBus path on which to implement
      *      an inventory manager.
-     *  @param[in] iface - The DBus inventory interface to implement.
      */
-    Manager(sdbusplus::bus::bus&&, const char*, const char*, const char*);
+    Manager(sdbusplus::bus::bus&&, const char*, const char*);
 
     using EventInfo =
         std::tuple<std::vector<EventBasePtr>, std::vector<Action>>;