Update the docs for GetBlockStats

GetBlockStats takes a second optional argument `stats`, which
defaults to all if not provided, but if provided, `getblockstats`
returns only the value of the stats requested.

Remove copy paste error from the past which included docs from
`getblockcount` in the documentation for `getblockstats`.

Author: Abeeujah

types/src/v17/blockchain/mod.rs

@@ -279,16 +279,19 @@ pub struct GetBlockHeaderVerbose {
 /// Result of JSON-RPC method `getblockstats`.
 ///
 /// > getblockstats hash_or_height ( stats )
-///
-/// > Returns the number of blocks in the longest blockchain.
-/// > getblockstats hash_or_height ( stats )
 /// >
 /// > Compute per block statistics for a given window. All amounts are in satoshis.
 /// > It won't work for some heights with pruning.
 /// > It won't work without -txindex for utxo_size_inc, *fee or *feerate stats.
 /// >
 /// > Arguments:
 /// > 1. "hash_or_height"     (string or numeric, required) The block hash or height of the target block
+/// > 2. "stats"              (json array, optional, default=all values) Values to plot (see result below)
+/// >    [
+/// >        "height",     (string) Selected statistic
+/// >        "time",       (string) Selected statistic
+/// >        ...
+/// >    ]
 #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 #[cfg_attr(feature = "serde-deny-unknown-fields", serde(deny_unknown_fields))]
 pub struct GetBlockStats {

types/src/v25/blockchain/mod.rs

@@ -15,16 +15,19 @@ pub use super::{GetBlockStatsError, ScanTxOutSetError};
 /// Result of JSON-RPC method `getblockstats`.
 ///
 /// > getblockstats hash_or_height ( stats )
-///
-/// > Returns the number of blocks in the longest blockchain.
-/// > getblockstats hash_or_height ( stats )
 /// >
 /// > Compute per block statistics for a given window. All amounts are in satoshis.
 /// > It won't work for some heights with pruning.
 /// > It won't work without -txindex for utxo_size_inc, *fee or *feerate stats.
 /// >
 /// > Arguments:
 /// > 1. "hash_or_height"     (string or numeric, required) The block hash or height of the target block
+/// > 2. "stats"              (json array, optional, default=all values) Values to plot (see result below)
+/// >    [
+/// >        "height",     (string) Selected statistic
+/// >        "time",       (string) Selected statistic
+/// >        ...
+/// >    ]
 #[derive(Clone, Debug, PartialEq, Deserialize, Serialize)]
 #[cfg_attr(feature = "serde-deny-unknown-fields", serde(deny_unknown_fields))]
 pub struct GetBlockStats {