lib/nfs/Connection: remove deprecated move constructor workaround

src/lib/nfs/Connection.hxx

@@ -103,22 +103,6 @@ public:
 		 server(_server), export_name(_export_name),
 		 context(nullptr) {}
 
-#if defined(__GNUC__) && !defined(__clang__) && !GCC_CHECK_VERSION(4,8)
-	/* needed for NfsManager::GetConnection() due to lack of
-	   std::map::emplace() */
-	NfsConnection(NfsConnection &&other)
-		:SocketMonitor(((SocketMonitor &)other).GetEventLoop()),
-		 DeferredMonitor(((DeferredMonitor &)other).GetEventLoop()),
-		 server(std::move(other.server)),
-		 export_name(std::move(other.export_name)),
-		 context(nullptr) {
-		assert(other.context == nullptr);
-		assert(other.new_leases.empty());
-		assert(other.active_leases.empty());
-		assert(other.callbacks.IsEmpty());
-	}
-#endif
-
 	/**
 	 * Must be run from EventLoop's thread.
 	 */