Remove pictures from iPhone
When importing my pictures into iPhoto (and now into Photos) on my Mac, it asks if I want to remove imported photos from my iPhone. Sometimes I have said yes, sometimes I have said no. How do I remove pictures from my device now from the times I have said no in the past? I cannot find a place in iPhoto, iTunes or Photos to manually remove the photos remaining on the device.
iMac, OS X Yosemite (10.10.3), new Photos app