perf(db): GvaUtxoIdDbV1::from_bytes avoid zeroed init

db/src/keys/gva_utxo_id.rs

@@ -123,17 +123,11 @@ impl FromBytes for GvaUtxoIdDbV1 {
     type Err = CorruptedBytes;
 
     fn from_bytes(bytes: &[u8]) -> std::result::Result<Self, Self::Err> {
-        if bytes.len() == 69 {
-            // TODO uncomment when feature const_generics became stable !
-            /*let mut buffer = uninit_array![u8; 69];
-            buffer.as_out().copy_from_slice(bytes);
-            Ok(Self(unsafe { std::mem::transmute(buffer) }))*/
-            let mut buffer = [0u8; 69];
-            buffer.copy_from_slice(bytes);
-            Ok(Self(buffer))
-        } else {
-            Err(CorruptedBytes("db corrupted".to_owned()))
-        }
+        Ok(Self(
+            bytes
+                .try_into()
+                .map_err(|_| CorruptedBytes("db corrupted".to_owned()))?,
+        ))
     }
 }