Remove unnecessary calls to utime() if report mode is off.
Remove unnecessary calls to utime() if report mode is off.

	* src/kernel/userver.cc(work): Duplicate the 'getTime();work;getTime()'
	sequence to remove two calls to utime() if report mode is off.

urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,urbiforge/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi,aldebaran/urbi,aldebaran/urbi,urbiforge/urbi