I don't see no problem. All you need to do is delete mmcblk0p5 and mmcblk0p4, move mmcblk0p2 and p3 up and expand mmcblk0p1. You can do this on-device but it can be a bit involved. The easiest way to do this is, install BackupMenu if not installed yet, then reboot to the menu and select mass storage mode. Attach to a Linux PC and edit your partitions in GParted. If you don't have a Linux PC, no problem. Download, burn and boot from an Ubuntu live CD.