I am not too familar with newnigma image.
But the lzma file is required for decompressing rytec files.
If you are not check boxing rytec, you can probably hack around this by opening
/usr/lib/enigma2/python/Plugins/Extensions/JediMakerXtream/menu.py
find this code.
Python
def check_dependencies(self):
dependencies = True
try:
import lzma
except:
try:
from backports import lzma
except:
dependencies = False
change that last line shown above to
dependancies = True
Then you will not get the dependancies loop.
It might work... It might not.