Splicing problem with VLS Integration

Starting from v26.04 splicing is enabled by default which causes VLS to fire the following error message:
```
ERROR connect: vlsd/src/grpc/signer.rs:508: error on stream: status: Unknown, message:
"h2 protocol error: error reading a body from connection", details: [], metadata:
MetadataMap { headers: {} } datadir="/path/to/vls" uri=http://localhost:/
```

Moreover, in v26.04 `lightningd --help` is still present a reference to the flag `experimental-splicing`, which if added as flag (or to the config file) makes the node crash with the error:
```
lightningd: Config file /path/to/config/file line 8: experimental-splicing: --experimental-splicing
is now enabled by default enabled by default
```

Conversely, [VLS](https://gitlab.com/lightning-signer/validating-lightning-signer) does not have (yet) implemented (in any branch afaik) [advertising for splicing](https://gitlab.com/lightning-signer/validating-lightning-signer/-/blob/main/vls-protocol-signer/src/handler.rs#L622) which causes the `h2 protocol error`.

Given that, is there any way to disable splicing?