delete an album off iphone that was synced with computer
i synced an album on my pc with my phone, but then got a macbook air. i want to delete that album off my iphone but when i plug in my phone and click on the photos tab, it doesn't let me unsync photos. it's all grey and it says to use the iphoto on the macbook to import photos and there's no way for me to uncheck the album that i previously synced on my pc. now the album is stuck on my phone but i want to delete it to open up more space.
MacBook Air, OS X Yosemite (10.10.4)