remove handling of kernel verification block from recovery image
remove handling of kernel verification block from recovery image

Change-Id: I749dc652651fdb02b49b290863e2fa9adc6b904e

Review URL: http://codereview.chromium.org/2948005

trnubo/scripts,smilart/scripts,mjg59/scripts,endocode/scripts,BugRoger/scripts,bcwaldon/coreos-scripts,marineam/coreos-scripts,andrejro/coreos--scripts,BugRoger/scripts,vmware/coreos-scripts,nicescale/scripts,bcwaldon/coreos-scripts,zhang0137/scripts,marineam/coreos-scripts,endocode/scripts,mischief/scripts,endocode/scripts,sigma/coreos-scripts,crawford/scripts,vmware/coreos-scripts,nicescale/scripts,gtank/scripts,zhang0137/scripts,glevand/coreos--scripts,andrejro/coreos--scripts,sigma/coreos-scripts,trnubo/scripts,vmware/coreos-scripts,andrejro/coreos--scripts,coreos/scripts,BugRoger/scripts,coreos/scripts,marineam/coreos-scripts,gtank/scripts,bcwaldon/coreos-scripts,glevand/coreos--scripts,trnubo/scripts,mjg59/scripts,fivethreeo/scripts,smilart/scripts,crawford/scripts,mjg59/scripts,mischief/scripts,zhang0137/scripts,fivethreeo/scripts,nicescale/scripts,mischief/scripts,crawford/scripts,gtank/scripts,smilart/scripts,sigma/coreos-scripts,fivethreeo/scripts