No, but it won't hurt to do so. I would remove it because it no longer is relevant.
And, see these documents.
How to set up and activate iMessage for iPhone and iPad https://www.imore.com/how-to-activate-imessage-iphone-ipad
If you can't sign in to your iMessage account or FaceTime on your Mac https://support.apple.com/en-us/HT204408
If you get an error when trying to activate iMessage or FaceTime https://support.apple.com/en-us/HT201422.
If you can't send or receive messages on your iPhone, iPad, or iPod touch https://support.apple.com/en-us/HT204065
Use these support options if you need more help:
Get a call from Apple support to help solve your problem using this link https://getsupport.apple.com/?caller=kbase&PGF=PGF63005&category_id=SC0245&symptom_id=23362 Be patient. Sometimes phone support is not available.
Apple ID Support https://support.apple.com/apple-id
Apple Support Twitter https://twitter.com/AppleSupport There may be a wait of an hour or so.
Apple ID account security for country-specific and region-specific help
https://support.apple.com/en-us/HT204169