[Moves] Using Autotomize does not reduce the Pokemon's weight

Hello~

Unlike in the original games, when using Autotomize, the Pokemon's weight is not reduced. Moves such as Low Kick will thus keep the same power.

Prerequisites (for testing):

- Two players

- Player A has a Klang that knows Autotomize.

- Player B has a lower level Pokemon that knows Low Kick.

Steps to Reproduce:

1. Both players battle each other.

2. Player B uses Low Kick against Klang.

3. Player A uses Autotomize after taking the hit.

4. Player B uses Low Kick again.

Current Result:

Player B's Klang takes as much damage before using Autotomize than after.

Expected Result:

Player B's Klang takes significantly lower damage after using Autotomize.

Notes:

- Bulbapedia states that the user loses 100 kg, bringing it to a minimum of 0.1 kg. As Klang is 51 kg, this means Klang's weight should become 0.1 kg, and Low Kick should be reduced from 80 power to 20 power, dealing 25% of its usual damage.

- The two other weight-modifying mechanics, Light Metal and Heavy Metal abilities, are correctly working and affecting Low Kick's power.