Collapse mysql OptGroup Sections

collapses two [mysql] sections into one.

Change-Id: I19317b392aa3c4d670eabbae079c6df406f0ab6f
Closes-Bug: #1302236
Remove dependencies on pep8, pyflakes and flake8

They should be determined by the hacking dependency
implicitly.

Change-Id: Ife6c3b708f2be7e9188248929daf710fa859c0af
Merge "Remove dependencies on pep8, pyflakes and flake8"
Merge "Collapse mysql OptGroup Sections"