Revert "utils: reimplement/fix mkdir_p()"
Revert "utils: reimplement/fix mkdir_p()"

This reverts commit 8de4140644f01180f2fdab55b0ab0f13d1c761c6.

This commit was preventing container startup on my machine, making them
all fail with various "No such file or directory" errors.

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

akshaykarle/lxc,armcc/lxc,ioops/lxc,virajs/lxc,tych0/lxc,ysbnim/lxc,GreatFruitOmsk/lxc,Pelagicore/lxc,smoser/lxc,glensc/lxc,efiop/lxc,JohnPeacockMessageSystems/lxc,ysbnim/lxc,ysbnim/lxc,terceiro/lxc,terceiro/lxc,abstrakraft/lxc-android-lxc,rldleblanc/lxc,raspberrypython/lxc,Ponce/lxc,lisongmin/lxc,bmoar/lxc,abstrakraft/lxc-android-lxc,hkjolhede/lxc,smoser/lxc,christiaan/lxc,bostjan/lxc,ojkastl/lxc_Patches,lazy404/lxc,szaszg/lxc,yubo/lxc,DarknessBeforeDawn/lxc,hfuCN/lxc,caglar10ur/lxc,GreatFruitOmsk/lxc,ss1h2a3tw/lxc,hfuCN/lxc,Pelagicore/lxc,yubo/lxc,thmo/lxc,ojkastl/lxc_Patches,hkjolhede/lxc,lazy404/lxc,cjwatson/lxc,caglar10ur/lxc,jirislaby/lxc,glensc/lxc,QingweiPeterLan/cs188-lxc,Distrotech/lxc,DarknessBeforeDawn/lxc,LynxChaus/lxc,QingweiPeterLan/cs188-lxc,federicobriata/lxc,virajs/lxc,codebauss/lxc,Distrotech/lxc,GreatFruitOmsk/lxc,hallyn/lxc,virajs/lxc,szaszg/lxc,DarknessBeforeDawn/lxc,LynxChaus/lxc,codebauss/lxc,rowhit/lxc,thmo/lxc,QingweiPeterLan/cs188-lxc,akshaykarle/lxc,ecarrara/lxc,codebauss/lxc,ksperis/lxc,lazy404/lxc,sapun/lxc,regit/lxc,sapun/lxc,raspberrypython/lxc,LynxChaus/lxc,rldleblanc/lxc,major/lxc,smoser/lxc,aeris/lxc,yubo/lxc,armcc/lxc,federicobriata/lxc,hkjolhede/lxc,major/lxc,tych0/lxc,tych0/lxc,fwilson42/lxc,rowhit/lxc,Distrotech/lxc,bostjan/lxc,sapun/lxc,rldleblanc/lxc,aeris/lxc,lisongmin/lxc,ojkastl/lxc_Patches,aeris/lxc,ss1h2a3tw/lxc,cjwatson/lxc,abstrakraft/lxc-android-lxc,ksperis/lxc,regit/lxc,JohnPeacockMessageSystems/lxc,bmoar/lxc,weizhenwei/lxc,ksperis/lxc,bmoar/lxc,efiop/lxc,jirislaby/lxc,rowhit/lxc,JohnPeacockMessageSystems/lxc,ojkastl/lxc_Patches,ecarrara/lxc,Ponce/lxc,weizhenwei/lxc,Pelagicore/lxc,federicobriata/lxc,ecarrara/lxc,akshaykarle/lxc,weizhenwei/lxc,smoser/lxc,ioops/lxc,hfuCN/lxc,efiop/lxc,regit/lxc,armcc/lxc,caglar10ur/lxc,hallyn/lxc,hallyn/lxc,ioops/lxc,christiaan/lxc,raspberrypython/lxc,ss1h2a3tw/lxc,christiaan/lxc,jirislaby/lxc,abstrakraft/lxc-android-lxc,lisongmin/lxc,szaszg/lxc,thmo/lxc,bostjan/lxc,terceiro/lxc,fwilson42/lxc,glensc/lxc,Ponce/lxc,cjwatson/lxc,fwilson42/lxc,major/lxc