the front badge is bolted on and its not advise to remove it as you left with a big hole in ur bonnet, some people replace the mk1 badge with a mk2 one stright swap and some people take it to a body shop and get it smoothed.
the rear ones when you take them off have two small little square holes which would need filling, rubbing and re-painting, yet again some people remove the mk1 badges and replace with mk2 which cover the holes, imo i would not bother as it is not worth the expense to just remove the bagdes i'd just update them but thats me
but saying that their many people that swear by removing them