Anonymize IRB approval number for peer review paper

Hello,

I am working on a journal paper where I had to take IRB approval, and I have the approval number too. Since I am planning on submitting to a peer-reviewed journal, I need to anonymize the information, as it’s a double-blinded review. So, my questions are:

1. Do I need to hide the IRB approval number and institution name?
2. I have cited my papers too. What’s the format to anonymize them?

N.B: it’s for IEEE journal.