motorola-ezx-base.inc: remove MACHINE_CLASS and MODUTILS vars
motorola-ezx-base.inc: remove MACHINE_CLASS and MODUTILS vars

not present in oe-core or meta-oe

Signed-off-by: Andrea Adami <58a22b0beb8ec13ae546a060c8b4c576f22f6153@gmail.com>

bluelightning/meta-handheld,bluelightning/meta-handheld