Remove specific line (with text) from a TMemo?

Hello, anyone can help me with a working code that can help me remove a specific line from a TMemo, where for example I want to remove the 2nd line from the list of text below, where the TMemo is in ReadOnly mode:

1. Lorem Ipsum.....
2. this is a test
3. once upon a time...
4. hello

From memory:
myMemo.Lines.Delete(1);