AssetDatabase.DeleteAsset
static function DeleteAsset(path: string): bool;
Parameters

path Filesystem path of the asset to be deleted.
Description

Deletes the asset file at path.

Returns true if the asset has been successfully deleted, false if it doesn't exit or couldn't be removed.

All paths are relative to the project folder, for example: "AssetsMyTextureshello.png"

See Also: AssetDatabase.MoveAssetToTrash.