Remember to turn off activity broadcast before making bulk adjustments to your LinkedIn profile. You'll avoid bugging your contacts with a stream of pointless notifications in their feed.
But more importantly, if you're actively looking for a new job, you'll avoid signalling to your current employer that you're sharpening your profile. This is especially true if recently you haven't been very active on LinkedIn.
Go to Privacy & Settings > Select who can see your activity feed to change this setting - and remember to change it back when you're done with your housekeeping.