kernel-obs-build: remove duplicated/unused parameters
    
    lbs=0 - this parameters is just giving "unused parameter" and it looks
    like I can not find any version that implemented this.
    
    rd.driver.pre=binfmt_misc is not needed when setup_obs is used, it
    alread loads the kernel module.
    
    quiet and panic=1 will now be also always added by OBS, so we don't have
    to set it here anymore.