Don't actually pass a hostname

This causes the install to fail.

Signed-off-by: Steev Klimaszewski <steev@kali.org>

simple-cdd/simple-cdd.conf

@@ -71,7 +71,7 @@ fi
 if [ "$ARCH" = "arm64" ]; then
     kernel_packages="linux-image-arm64"
 # ARM devices don't typically have a default console set, so we export one here
-    export KERNEL_PARAMS="console=tty0 hostname=kali"
+    export KERNEL_PARAMS="console=tty0 "
 fi
 
 # Random other variables