Completely remove Ubuntu touch specific parts

[mariogrip]

[Flohack74]

Also this belongs probably to this issue:
acp: file '/home/florian/halium-5.1/halium/prebuilt-initrd/initrd.img-touch' does not exist
when building the halium-5.1 ATM...

[z3ntu]

@Flohack74 Can you please test Halium/android_build#5?

[Flohack74]

Yes can be that this works, but I got another error, so until I fix this one I wont confirm that I get a clean image :)