Remove webserver / copy config files

I thought I removed the webserver but I guess not.

The config files needed to be copied to /sdcard/files even though the webserver is no longer being used so nethunter app can utilize.

Also need to check if /sdcard/files and /sdcard/kali-nh is writeable.

Signed-off-by: binkybear <binkybear@nethunter.com>