Change the bytes-to-inode ratio back to the default 16384, which is documented...

Change the bytes-to-inode ratio back to the default 16384, which is documented here: https://wiki.archlinux.org/index.php/ext4#Bytes-per-inode_ratio

The previous value 100000 seems like an arbitrary value that has presumably no special reason for it. And it caused a small size LiveUSB partition to run out of inode prematurely.