S.M.
I think that it depends how much she is sleeping at night. Ask your pediatrician wht is the right number of hours in a day and try to get that in total. It is possible she is making up for it at night or by taking one long nap. Also consider if giving up this nap is making her fussy later in the day or hard to put to bed. The more rest she gets during the day the better she will sleep at night. Use these factors to make your decision and not just what other moms are doing.
That being said, my personal opinion based on my daughter who is now 4 years - I think she should have at least 2 naps (around 2 hours each) until she is about 18 months. I suspect that she is just adjusting her nap times or discovering her world a bit more and this distraction is making her resist a nap, so I would suggest keep trying. Get her to sleep earlier or later or add or decrease nap lengths.
It seems to me my daughter would hit these "bumps in the road" and it could usually be resolved with perseverence. My four year old still takes one short afternoon nap which I really value. And I think kids need more sleep than we give them credit. I see lots of kids falling asleep in their strollers or while eating their dinners - I think we push them to keep up with us too much. Just because they can stay awake doesn't mean they should.