Rick Taylor unfurled the homemade sign at the Emirates stadium before kick-off at Sunday's clash in London for which away fans were charged £62.
It read: “£62! Where will it stop?”
A spokesman for Arsenal said that the banner was removed because it was obstructing other supporters' views and not because of the message it carried.
A spokesman for the Metropolitan Police said: “Officers assisted stewards at the Emirates Stadium in order to prevent a breach of the peace, after away supporters were asked by stewards to take down a banner," he said.
“Officers spoke to the supporters, who had refused to take down the banner, and then assisted stewards with its removal. No arrests were made.
“The monitoring of banners inside football stadiums is a matter for club security. However, officers may assist security, for instance, where there are fears of a potential breach of the peace.”