AttackStrengthTicker desynchronization when aborting block break

Bug

The client resets its AttackStrengthTicker in MultiPlayerGameMode#stopDestroyBlock, however (strangely) it does not reset it in the other places where ABORT_DESTROY_BLOCK is sent. The server never resets the AttackStrengthTicker when a block destroy is aborted.

Vanilla Reproducer

This bug is hard to demonstrate due to another bug https://bugs.mojang.com/browse/MC-255058. Currently, the bug in this report simply causes a 1-tick delay between the client & server strength ticker.

However, once that other bug is fixed, this issue will become more obvious because the client will think it has a low AttackStrengthTicker, but the server will make attacks deal maximum damage.

Fix

Remove the last line of `MultiPlayerGameMode#stopDestroyBlock` which erroneously resets the attack strength.

Thanks,

Moulberry