Method remove_handler

src/platforms/stub/isr_stub.hpp:144–165

    }

    void remove_handler(stub_isr_handle_data* handler) FL_NOEXCEPT {
        fl::unique_lock<fl::mutex> lock(mMutex) FL_NOEXCEPT;

        // Remove from vector
        for (size_t i = 0; i < mHandlers.size(); ++i) {
            if (mHandlers[i] == handler) {
                mHandlers.erase(mHandlers.begin() + i);
                break;
            }
        }

        // Stop thread if no more handlers
        if (mHandlers.empty() && mTimerThread) {
            mShouldStop = true;
            mCondVar.notify_one();  // Wake the thread so it can exit
            lock.unlock();  // Unlock before joining
            if (mTimerThread->joinable()) {
                mTimerThread->join();
            }
            mTimerThread.reset();
        }
    }

    ~TimerThreadManager() {
        if (mTimerThread) {