Help Me to clear BitcoinCore of trash!?

[walletrecovery]

[nc50lc]

Those are saved in your wallet.dat file so if there are transactions listed there, those txns were previously sent/received with that wallet.

If you want you can export the wallet's "hdseed" from dumpwallet and then use sethdseed command to import it to a new 'blank' 'non-descriptor' wallet.
The new wallet will have the same keys but wont contain any transactions until it synced.
Alternatively, you can import the dump file with importwallet command.

If it's a descriptor wallet, export the private descriptors via listdescriptors true command.
Then import those to a new 'blank' 'descriptor' wallet via importdescriptors command on each descriptor.

Anyways, those transactions should reappear once the wallet is synced so I can't see the reason on doing this.

[LoyceV]

If you want you can export the wallet's "hdseed"

It's not a HD-wallet (see icon bottom right).

Anyways, those transactions should reappear once the wallet is synced so I can't see the reason on doing this.

Agreed. Just let it sync first.

[nc50lc]

It's not a HD-wallet (see icon bottom right).

Oh, thanks, I missed the slashed 'HD' icon.
Then he can only do the "alternative method" below it if he somehow feel that it's necessary.

[litecoin_messiah]

Listreceivedbyaddress

[walletrecovery]

Listreceivedbyaddress

I thought that in the folder with the program there is some kind of dirty file that can be deleted so as not to see this garbage.