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I do not know how to clean it up, but I do know that you should remove the boot camp partition via the boot camp assistant for the cleanest removal (not disk utility) in OS X

 

^^ This. Try running the Bootcamp Assistant and seeing what it does for you.

 

Explain please, so you're not able to run internet recovery (command R) either? What does your machine do?

 

It should not be if done correctly - do you see a spinning earth/globe icon?

If so, go into internet recovery's disk utility and format individual partitions first (not the entire physical volume). I format them all to Mac journaled and when you've erased all partitions, then you should be able to select the physical drive and run another erase.

 

the last time i tried messing with a bootcamp partition it left 50gb of unused space in a grey area and when i tried to reclaim it said error could not unmount disk. I had to enter internet recovery and reformat my whole hd as 1 partition and redo everything