danmakuClip删查改接口，videoClip删除接口

controller/api/video_clip_blueprint.py

@@ -45,4 +45,16 @@ def modify_video_clip(video_clip_id):
     duration = duration_str_to_float(get_video_real_duration(video_clip.full_path))
     video_clip.duration = duration
     db.session.commit()
-    return jsonify(video_clip.to_json())
+    return jsonify(video_clip.to_json())
+
+
+@blueprint.delete("/<int:video_clip_id>")
+def delete_video_clip(video_clip_id):
+    video_clip = VideoClip.query.get(video_clip_id)
+    if video_clip is not None:
+        db.session.delete(video_clip)
+        db.session.commit()
+    return jsonify({
+        "id": video_clip_id,
+        "old_data": video_clip
+    })