How can I delete a partition? Standard procedures do not work

Hello

Context:

MacBook Air (mid 2011), version OS X El Captian 10.11.4

128 GB SSD into a 70 GB partition (OS X el capitan, the name is "Macintosh HD") and a 50GB partition (used to be bootcamp, name is now 'B'). The 50 GB partition needs to go.

I erased the 50 GB for OS X extended (journaled) partition, but when I click on the partition, I still can not remove it (the infamous "less grey", see picture).

I can resize, Macintosh HD remains to 70 GB and a third made partition which in turn can be eliminated, but the space that he released is allocated in B again, which does not solve anything.

By restarting on recovery mode and using disk utility it has not allowed for the partition to be removed either.

As you can see from the image above, I also did an eDrive, where I still can't delete the partition of 50GB.

Note: Filevault is turned off.

I feel pretty silly since I managed to do it before on a previous version of mac OS... (at the time where I had to enlarge the bootcamp partition, but to do this I had to remove everything first, because of its format)

Help me, apple community, you're my only hope!

I believe that when you create a Boot Camp partition, it had to be removed using Boot Camp Assistant.

Tags: Mac OS & System Software

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