local.conf: Remove "image-mklibs" and "image-prelink" from USER_CLASSES
local.conf: Remove "image-mklibs" and "image-prelink" from USER_CLASSES

Signed-off-by: Haris Okanovic <4f2c24956fa4a8756878315db434b9fed29fa615@ni.com>
Natinst-CAR-ID: 676613
Natinst-ReviewBoard-ID: 214978
Natinst-ReviewBoard-ID: 214991

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt