Remove simulated device from "present" list when disassociated.

Bug: 262910767
Test: atest CtsCompanionDeviceManagerCoreTestCases --iterations 10
Change-Id: Ia9a5de47ce0cc1293c1b99d7247bceccf36d5808

services/companion/java/com/android/server/companion/presence/CompanionDevicePresenceMonitor.java

@@ -281,6 +281,7 @@ public class CompanionDevicePresenceMonitor implements AssociationStore.OnChange
         mConnectedBtDevices.remove(id);
         mNearbyBleDevices.remove(id);
         mReportedSelfManagedDevices.remove(id);
+        mSimulated.remove(id);
 
         // Do NOT call mCallback.onDeviceDisappeared()!
         // CompanionDeviceManagerService will know that the association is removed, and will do