Paste as plain text should remove hyperlinks

[willzhang]

Describe the bug
Paste as plain text should remove hyperlinks。

To Reproduce
Steps to reproduce the behavior:

1. Go to copy this context in typora： For deployment options see [[Deploying to Production](https://flask.palletsprojects.com/en/stable/deploying/)](https://flask.palletsprojects.com/en/stable/deploying/).
2. paste as plain text in typora
3. See Paste as plain text still have hyperlinks

Expected behavior
Paste as plain text should remove hyperlinks.

Screenshots / Screencasts

Sample Markdown File

For deployment options see [[Deploying to Production](https://flask.palletsprojects.com/en/stable/deploying/)](https://flask.palletsprojects.com/en/stable/deploying/).

Desktop (please complete the following information):

• OS: Windows 11

Typora Version
e.g: 1.9.5

Additional context
Add any other context about the problem here.

[willzhang]

#5886