When a sword gets a saddle, the only way to take it off is to kill the pig.
Comments 2
Thank you for your report!
However, this issue is Invalid.
You have posted a feature request or a suggestion. This site is for bug reports only.
For suggestions, please visit the Minecraft feedback site or Minecraft Suggestions on Reddit.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
This is probably intentional. There is no way of getting rid of the saddle from a pig without killing them.