Deleted content type shows in the "Add content" menu I had some content types I wanted to delete so I went to Structure >> Content types. I deleted the content types that I didn't want to have anymore, and I cleared all the cache through drush and performance. 

I also went to my database and look through to double check if they were deleted, and I found they were deleted correctly. 

I have also restarted my MAMP local server.

The problem is that the deleted content types appears on "Add content" but they are not clickable. I don't want them to appear there. why does this happen?
I had the same problem which I just managed to fix - thanks to  Mołot's comment which made me think of menus.  It looks like creating a content type adds an entry to the Navigation menu but deleting it doesn't delete the entry.  I just disabled that menu item and now it's gone from the Add Content page.