Counters: mark the savestate poison-repair blocks DELETEME after 2026-12-01

The load-time repairs in rcntFreeze/psxRcntFreeze exist only to heal .p2s
files saved by builds that predate the trigger fix (9f6288531d, 2026-08-09).
No new state can carry the scar, so once old states have aged out the loops
can simply be deleted; the sync-time guards stay.

pcsx2/Counters.cpp

@@ -1114,11 +1114,18 @@ bool SaveStateBase::rcntFreeze()
 
 	if (IsLoading())
 	{
+		// DELETEME after 2026-12-01: transitional repair for old poisoned states.
 		// Repair states poisoned by the old u32 rcntSyncCounter blowup (baseline one
 		// full 2^32 epoch in the future, count far outside the 16-bit domain): snap
 		// the baseline back to now and re-fold the count, or the counter stays dead
 		// until cycle crosses the bogus baseline. cpuRegs is thawed before us, so
 		// cpuRegs.cycle is the loaded state's own clock here.
+		//
+		// The trigger (cross-thread ExitExecution warping the EE clock backwards)
+		// was fixed 2026-08-09, so no new state can carry this scar; this block
+		// only heals .p2s files saved by builds older than that. Once those have
+		// aged out (a few months of releases), delete the loop below — the guard
+		// in rcntSyncCounter stays.
 		for (int i = 0; i < 4; i++)
 		{
 			bool repaired = false;

pcsx2/IopCounters.cpp

@@ -820,11 +820,14 @@ bool SaveStateBase::psxRcntFreeze()
 
 	if (IsLoading())
 	{
+		// DELETEME after 2026-12-01: transitional repair for old poisoned states.
 		// Repair states poisoned by the old u32 psxRcntSync blowup (baseline one full
 		// 2^32 epoch in the future): snap the baseline back to now, or the counter
 		// stays dead until psxRegs.cycle crosses the bogus baseline (116.5 s). The
 		// count is left alone — IOP counts are u64 and several counters legitimately
-		// run wider than 16 bits.
+		// run wider than 16 bits. Same removal terms as the EE-side block in
+		// rcntFreeze: the trigger was fixed 2026-08-09, this only heals states
+		// saved by older builds; delete the loop once those have aged out.
 		for (int i = 0; i < NUM_COUNTERS; i++)
 		{
 			if ((s64)(psxRegs.cycle - psxCounters[i].startCycle) >= 0)