Removing useless func IsAlive, since it's handled by ISetAllocated

mesosphere/source/interrupts/KInterruptEvent.cpp

@@ -13,13 +13,7 @@ Result KInterruptEvent::Initialize(int irqId, u32 flags)
     // TODO implement
     (void)flags;
     this->irqId = irqId;
-    isInitialized = true;
     return ResultSuccess();
 }
 
-bool KInterruptEvent::IsAlive() const
-{
-    return isInitialized;
-}
-
 }

mesosphere/source/processes/KEvent.cpp

@@ -9,18 +9,12 @@ KEvent::~KEvent()
 {
 }
 
-bool KEvent::IsAlive() const
-{
-    return isInitialized;
-}
-
 Result KEvent::Initialize()
 {
     SetClientServerParent();
     SetResourceOwner(KCoreContext::GetCurrentInstance().GetCurrentProcess());
-    isInitialized = true;
 
     return ResultSuccess();
 }
 
-}
+}

mesosphere/source/threading/KThread.cpp

@@ -9,11 +9,6 @@
 namespace mesosphere
 {
 
-bool KThread::IsAlive() const
-{
-    return true;
-}
-
 void KThread::OnAlarm()
 {
     CancelKernelSync();