message: Avoid copy in impl Into<u128> for Uint128
diff: @@ -66,6 +66,7 @@ impl Uint128 {
  Uint128(0)
  }
  + /// Returns a copy of the internal data
  pub fn u128(&self) -> u128 {
  self.0
  }
  @@ -106,7 +107,7 @@ impl Into<String> for Uint128 {
  impl Into<u128> for Uint128 {
  fn into(self) -> u128 {
  - self.u128()
  + self.0
  }
  }
  