Revert "pbp: commence ext4 testing"

And, it's still failing *sigh*

This reverts commit 5357d1c20d.

pinebook-pro.sh

@@ -835,7 +835,7 @@ EOF
 echo "Creating image file for ${imagename}.img"
 dd if=/dev/zero of="${basedir}"/${imagename}.img bs=1M count=${size}
 parted ${imagename}.img --script -- mklabel msdos
-parted ${imagename}.img --script -- mkpart primary ext4 2048s 100%
+parted ${imagename}.img --script -- mkpart primary ext3 2048s 100%
 
 # Set the partition variables
 loopdevice=`losetup -f --show "${basedir}"/${imagename}.img`
@@ -845,7 +845,7 @@ device="/dev/mapper/${device}"
 rootp=${device}p1
 
 # Create file systems
-mkfs.ext4 ${rootp}
+mkfs.ext3 ${rootp}
 
 # Create the dirs for the partitions and mount them
 mkdir -p "${basedir}"/root