Apparently not -- though not for a lack of effort.
The casinos and county have tried at different times and in different ways to rid the Strip of people who try to hand passersby cards and tabloids that promote working girls. The casinos have had their security guards harrass the hander-outers, who just move to places between casinos or, for example, in front of the Fashion Show Mall. The casinos have also argued in court that they own the sidewalks in front of their properties and can therefore control what occurs on them, but have been consistently shot down judicially over First Amendment rights.
Nothing has been successful in ridding the Strip of these pests.
The situation is certainly annoying and sometimes a bit confrontive. But most people simply ignore the leafleteers -- just as they learn to live with other annoying aspects of their Vegas vacations, such as traffic and lines and losing.