Revert "added ClearTarget mechanic" authored by Lxlp's avatar Lxlp
This reverts commit 1f8283a3389908f340de3fcb5bc030ebbd4ae456.
## Description
Clears all potion effects from the target entity
## Attributes
| Attribute | Aliases | Description | Default |
|-----------|-----------|----------------------------------------------------------------------|---------|
| types | type, t | The type or list of types of potion effects to clear. Not providing a type will clear all effects. |<!--type:PotionEffectType-->|
## Examples
```yaml
Skills:
- potionclear{type=FIRE_RESISTANCE} @target
- potionclear{type=FIRE_RESISTANCE,SPEED} @self
- potionclear @self
```
## Aliases
- [x] clearpotion
- [x] clearpotions
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