Some typos
Revert "Comment why the include is necessary"

This reverts commit 15df6d98afb8c3813013c5b97efffe0ba8020d32.
Revert "Make sure that a prototype is included for 'setIOManagerControlFd'"

This reverts commit 7bf49f86a20f3beda0ee5fbea2db64cfef730d74.