Use Into in Hash::result() instead of TryFrom (#29721)

sdk/program/src/hash.rs

@@ -61,9 +61,7 @@ impl Hasher {
         }
     }
     pub fn result(self) -> Hash {
-        // At the time of this writing, the sha2 library is stuck on an old version
-        // of generic_array (0.9.0). Decouple ourselves with a clone to our version.
-        Hash(<[u8; HASH_BYTES]>::try_from(self.hasher.finalize().as_slice()).unwrap())
+        Hash(self.hasher.finalize().into())
     }
 }