The other day, I had dinner with a foreign friend, he called the waiter to clean up the table, and he said ‘这些不要了（we don’t need these）’.It’s OK, and we also have the corresponding Chinese saying like English. I often say ’不好意思，麻烦收拾一下（bù hǎo yì si, má fan shōu shi yí xia）-Excuse me, could you please clean up here?’