diff --git a/Utilities/Thread.h b/Utilities/Thread.h
index cccc97e832..380d48321b 100644
--- a/Utilities/Thread.h
+++ b/Utilities/Thread.h
@@ -81,13 +81,6 @@ struct result_storage<void>
 template <class Context, typename... Args>
 using result_storage_t = result_storage<std::invoke_result_t<Context, Args...>>;
 
-// Detect on_abort() method (should return void)
-template <typename T, typename = void>
-struct thread_on_abort : std::bool_constant<false> {};
-
-template <typename T>
-struct thread_on_abort<T, decltype(std::declval<named_thread<T>&>().on_abort())> : std::bool_constant<true> {};
-
 // Detect on_cleanup() static member function (should return void) (in C++20 can use destroying delete instead)
 template <typename T, typename = void>
 struct thread_on_cleanup : std::bool_constant<false> {};
@@ -457,12 +450,6 @@ public:
 		{
 			if (s == thread_state::aborting)
 			{
-				// Call on_abort() method if it's available
-				if constexpr (thread_on_abort<Context>())
-				{
-					Context::on_abort();
-				}
-
 				thread::notify_abort();
 			}
 		}
diff --git a/rpcs3/Emu/CPU/CPUThread.cpp b/rpcs3/Emu/CPU/CPUThread.cpp
index 186bc9d167..43d72b32e1 100644
--- a/rpcs3/Emu/CPU/CPUThread.cpp
+++ b/rpcs3/Emu/CPU/CPUThread.cpp
@@ -387,11 +387,6 @@ void cpu_thread::operator()()
 	g_cpu_suspend_lock.lock_unlock();
 }
 
-void cpu_thread::on_abort()
-{
-	state += cpu_flag::exit;
-}
-
 cpu_thread::~cpu_thread()
 {
 	vm::cleanup_unlock(*this);
diff --git a/rpcs3/Emu/CPU/CPUThread.h b/rpcs3/Emu/CPU/CPUThread.h
index 1e90e82df3..dfe7735f3f 100644
--- a/rpcs3/Emu/CPU/CPUThread.h
+++ b/rpcs3/Emu/CPU/CPUThread.h
@@ -37,7 +37,6 @@ protected:
 public:
 	virtual ~cpu_thread();
 	void operator()();
-	void on_abort();
 
 	// Self identifier
 	const u32 id;
diff --git a/rpcs3/Emu/Cell/lv2/sys_timer.cpp b/rpcs3/Emu/Cell/lv2/sys_timer.cpp
index 96090cd901..d8fc9871b2 100644
--- a/rpcs3/Emu/Cell/lv2/sys_timer.cpp
+++ b/rpcs3/Emu/Cell/lv2/sys_timer.cpp
@@ -60,12 +60,6 @@ void lv2_timer_context::operator()()
 	}
 }
 
-void lv2_timer_context::on_abort()
-{
-	// Signal thread using invalid state
-	state = -1;
-}
-
 error_code sys_timer_create(ppu_thread& ppu, vm::ptr<u32> timer_id)
 {
 	vm::temporary_unlock(ppu);
diff --git a/rpcs3/Emu/Cell/lv2/sys_timer.h b/rpcs3/Emu/Cell/lv2/sys_timer.h
index 0de1f4ade4..3202dfbe05 100644
--- a/rpcs3/Emu/Cell/lv2/sys_timer.h
+++ b/rpcs3/Emu/Cell/lv2/sys_timer.h
@@ -26,7 +26,6 @@ struct lv2_timer_context : lv2_obj
 	static const u32 id_base = 0x11000000;
 
 	void operator()();
-	void on_abort();
 
 	shared_mutex mutex;
 	atomic_t<u32> state{SYS_TIMER_STATE_STOP};