Remove the space from between headline and its section edit link

I kept it in I6a6c12a9, but really there's no reason for it to be
there, as the link is delineated with square brackets and visually
with a 1 em padding. It only causes funkiness when copying text.

Change-Id: I7bde0e4fd646108f9319d5d5d00e7ea49fee9252
Merge "Remove the space from between headline and its section edit link"