Okay, I've never tried this so it might not work. It's not going to do anything that will brick your phone though, it just puts the stock stuff back in place. Download the zip, extract, and put the files inside the "stuff" folder with your adb (aka platform-tools folders). Again, put the files only, not the "stuff" folder.-
https://www.box.com/s/725u5svbgtc051hoxck2
Then run these things in cmd once the adb can see the phone.
adb pull /system/build.prop
adb push build.prop.stock /system/
adb push libbundlewrapper.so.stock /system/lib/soundfx/
adb push libreverbwrapper.so.stock /system/lib/soundfx/
adb push libvisualizer.so.stock /system/lib/soundfx/
adb wait-for-device shell
mount -o remount,rw /dev/block/mmcblk0p12 /system
cd /system/lib/soundfx/
rm libbundlewrapper.so
rm libreverbwrapper.so
rm libvisualizer.so
rm libxloudwrapper.so
rm libsrsfx.so
rm libcyanogen-dsp.so
rm libbeatsbass.so
rm libaudiopreprocessing.so
mv libbundlewrapper.so.stock libbundlewrapper.so
mv libreverbwrapper.so.stock libreverbwrapper.so
mv libvisualizer.so.stock libvisualizer.so
cd /system/
rm build.prop
mv build.prop.stock build.prop
mount -o remount,ro /dev/block/mmcblk0p12 /system
exit
adb reboot