選択中のアニメーションクリップからTransformに関連するカーブを消す

RmoveAnimationCurve.cs

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.Linq;

public class RmoveAnimationCurve  {

	[MenuItem("Assets/RemoveTransform")]
	static void Remove()
	{
		// 選択中の項目からAnimationClip一覧を取得
		var clips = Selection.objects
			.Where (c => c is AnimationClip)
			.Select (c => (AnimationClip)c);

		foreach (var clip in clips) {
			// Transformに関連するBindingを取得し、消す
			var bindings = AnimationUtility.GetCurveBindings (clip);
			var removeBindings = bindings.Where (c => c.type == typeof(Transform));
			foreach (var binding in removeBindings) {
				AnimationUtility.SetEditorCurve (clip, binding, null);
			}
		}
	}
}