[mojo-edk] Revert port reservation timeout behavior

mojo/edk/system/node_controller.cc

Index: mojo/edk/system/node_controller.cc
diff --git a/mojo/edk/system/node_controller.cc b/mojo/edk/system/node_controller.cc
index 822165a99756a4d26253d2bdd589a4b33a3fc1a0..6e93e9c7d462d99d3bc33b5c44e910732b6d44c3 100644
--- a/mojo/edk/system/node_controller.cc
+++ b/mojo/edk/system/node_controller.cc
@@ -190,14 +190,6 @@ void NodeController::ReservePort(const std::string& token,
   base::AutoLock lock(reserved_ports_lock_);
   auto result = reserved_ports_.insert(std::make_pair(token, port));
   DCHECK(result.second);
-
-  // Safeguard against unpredictable and exceptional cases where a reservation
-  // holder may disappear without ever claiming their reservation.
-  io_task_runner_->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&NodeController::CancelReservation,
-                 base::Unretained(this), token),
-      base::TimeDelta::FromMinutes(1));
 }
 
 void NodeController::MergePortIntoParent(const std::string& token,
@@ -547,19 +539,6 @@ void NodeController::DropAllPeers() {
     delete this;
 }
 
-void NodeController::CancelReservation(const std::string& token) {
-  ports::PortRef reserved_port;
-  {
-    base::AutoLock lock(reserved_ports_lock_);
-    auto iter = reserved_ports_.find(token);
-    if (iter == reserved_ports_.end())  // Already claimed!
-      return;
-    reserved_port = iter->second;
-    reserved_ports_.erase(iter);
-  }
-  node_->ClosePort(reserved_port);
-}
-
 void NodeController::GenerateRandomPortName(ports::PortName* port_name) {
   GenerateRandomName(port_name);
 }