diff --git a/modules/juce_events/timers/juce_Timer.cpp b/modules/juce_events/timers/juce_Timer.cpp
index e0bbadb024..6b7343a559 100644
--- a/modules/juce_events/timers/juce_Timer.cpp
+++ b/modules/juce_events/timers/juce_Timer.cpp
@@ -295,20 +295,12 @@ Timer::TimerThread* Timer::TimerThread::instance = nullptr;
 Timer::TimerThread::LockType Timer::TimerThread::lock;
 
 //==============================================================================
-#if JUCE_DEBUG
-static SortedSet <Timer*> activeTimers;
-#endif
-
 Timer::Timer() noexcept
    : countdownMs (0),
      periodMs (0),
      previous (nullptr),
      next (nullptr)
 {
-   #if JUCE_DEBUG
-    const TimerThread::LockType::ScopedLockType sl (TimerThread::lock);
-    activeTimers.add (this);
-   #endif
 }
 
 Timer::Timer (const Timer&) noexcept
@@ -317,30 +309,17 @@ Timer::Timer (const Timer&) noexcept
      previous (nullptr),
      next (nullptr)
 {
-   #if JUCE_DEBUG
-    const TimerThread::LockType::ScopedLockType sl (TimerThread::lock);
-    activeTimers.add (this);
-   #endif
 }
 
 Timer::~Timer()
 {
     stopTimer();
-
-   #if JUCE_DEBUG
-    activeTimers.removeValue (this);
-   #endif
 }
 
 void Timer::startTimer (const int interval) noexcept
 {
     const TimerThread::LockType::ScopedLockType sl (TimerThread::lock);
 
-   #if JUCE_DEBUG
-    // this isn't a valid object! Your timer might be a dangling pointer or something..
-    jassert (activeTimers.contains (this));
-   #endif
-
     if (periodMs == 0)
     {
         countdownMs = interval;
@@ -357,11 +336,6 @@ void Timer::stopTimer() noexcept
 {
     const TimerThread::LockType::ScopedLockType sl (TimerThread::lock);
 
-   #if JUCE_DEBUG
-    // this isn't a valid object! Your timer might be a dangling pointer or something..
-    jassert (activeTimers.contains (this));
-   #endif
-
     if (periodMs > 0)
     {
         TimerThread::remove (this);