My thoughts are only that Sleight of Hand should be rolled into Stealth as most uses of SOH are attempting to conceal something i.e. Stealth. The Fly skill, honestly, I don't see being used much and can be made into a GM decided thing Dex or Acrobatics for those with wings and some sort of Arcane Knowledge or Spellcraft based check for Magical flying.
Sense Motive could also be rolled into Perception as most times one would ever put points into Sense Motive would be in a mystery style campaign.
It does make sense to condense skills down as much as possible, as players have a limited number of points to spread out and unless they know before hand what skill will be used most it can leave them at a disadvantage. Having a few skills that cover many bases could only make for better game play.