Can't boot after installing USB 3.0 and audio kexts

[YoDevil]

I had a working Yosemite build, but USB 3.0 and audio were not working as expected. USB 3.0 didn't work at all, and audio output only worked using the front jack of my case. I used Multibeast 7.0.2 to install everything, today I saw last versione was 7.1.1 so i decided to update it and retry installing USB 3.0 Universal and ALC892. Now i'm stuck at boot where it show a message on top of the screening saying:
Debugger called: </SourceCache/GPUDriversIntel/GPUDriversIntel-10.0.86/Common/IONDRV/Intel/IVB/AppleIntelFramebuffer/AppleIntelController.cpp:13813 Assertion failed: (0 == i) || ((pfbInfo->rangeStolen.physBase - pfbInfoPrev->rangeSt
>

Debugger not configured. Hanging

System spec:
Mobo:Asus p8z77-v lk
VGA: MSI GTX 970
CPU: i5 3450

Any help on how to fix, or remove those kexts?

 

[YoDevil]

I tried deleting kexts from SingleUser mode using those commands

mount -uw /
cd /System/Library/Extensions
rm -rf AppleHDA.kext
rm -rf GenericUSBXHCI.kext
sudo rm -rf /System/Library/Caches/*
shutdown -r now

But still nothing.
Any hint?