Revert "init: handle property service callbacks asynchronously"

This is apparently causing problems with reboot.

This reverts commit 7205c6293341c82701e849fa29cfab66916d1052.

Bug: 150863651
Test: build
Change-Id: Ib8a4835cdc8358a54c7acdebc5c95038963a0419
diff --git a/init/action_manager.cpp b/init/action_manager.cpp
index b45f5cd..ebca762 100644
--- a/init/action_manager.cpp
+++ b/init/action_manager.cpp
@@ -41,12 +41,10 @@
 }
 
 void ActionManager::QueueEventTrigger(const std::string& trigger) {
-    auto lock = std::lock_guard{event_queue_lock_};
     event_queue_.emplace(trigger);
 }
 
 void ActionManager::QueuePropertyChange(const std::string& name, const std::string& value) {
-    auto lock = std::lock_guard{event_queue_lock_};
     event_queue_.emplace(std::make_pair(name, value));
 }
 
@@ -55,7 +53,6 @@
 }
 
 void ActionManager::QueueBuiltinAction(BuiltinFunction func, const std::string& name) {
-    auto lock = std::lock_guard{event_queue_lock_};
     auto action = std::make_unique<Action>(true, nullptr, "<Builtin Action>", 0, name,
                                            std::map<std::string, std::string>{});
     action->AddCommand(std::move(func), {name}, 0);
@@ -65,18 +62,15 @@
 }
 
 void ActionManager::ExecuteOneCommand() {
-    {
-        auto lock = std::lock_guard{event_queue_lock_};
-        // Loop through the event queue until we have an action to execute
-        while (current_executing_actions_.empty() && !event_queue_.empty()) {
-            for (const auto& action : actions_) {
-                if (std::visit([&action](const auto& event) { return action->CheckEvent(event); },
-                               event_queue_.front())) {
-                    current_executing_actions_.emplace(action.get());
-                }
+    // Loop through the event queue until we have an action to execute
+    while (current_executing_actions_.empty() && !event_queue_.empty()) {
+        for (const auto& action : actions_) {
+            if (std::visit([&action](const auto& event) { return action->CheckEvent(event); },
+                           event_queue_.front())) {
+                current_executing_actions_.emplace(action.get());
             }
-            event_queue_.pop();
         }
+        event_queue_.pop();
     }
 
     if (current_executing_actions_.empty()) {
@@ -109,7 +103,6 @@
 }
 
 bool ActionManager::HasMoreCommands() const {
-    auto lock = std::lock_guard{event_queue_lock_};
     return !current_executing_actions_.empty() || !event_queue_.empty();
 }
 
@@ -120,7 +113,6 @@
 }
 
 void ActionManager::ClearQueue() {
-    auto lock = std::lock_guard{event_queue_lock_};
     // We are shutting down so don't claim the oneshot builtin actions back
     current_executing_actions_ = {};
     event_queue_ = {};