armbian-next: cleanup, kill and add to-do's, remove dead code, turn down logging, squash future shortcircuit bugs

- killed `[[ $ROOTFS_TYPE != ext4 ]] && display_alert "Assuming ${BOARD} ${BRANCH} kernel supports ${ROOTFS_TYPE}" "" "wrn"`
  - which definitely didn't belong in rootfs
- disable usage of run_host_command_logged_long_running for kernel-make
- stop lying about long_running stuff being any different from non-long_running versions
- stop lying about 'set -e' when there's still a bunch of pipes for "pv" and stuff all around

lib/functions/main/rootfs-image.sh

@@ -2,7 +2,6 @@
 
 function build_rootfs_and_image() {
 	display_alert "Checking for rootfs cache" "$(echo "${BRANCH} ${BOARD} ${RELEASE} ${DESKTOP_APPGROUPS_SELECTED} ${DESKTOP_ENVIRONMENT} ${BUILD_MINIMAL}" | tr -s " ")" "info"
-	[[ $ROOTFS_TYPE != ext4 ]] && display_alert "Assuming ${BOARD} ${BRANCH} kernel supports ${ROOTFS_TYPE}" "" "wrn"
 
 	LOG_SECTION="prepare_rootfs_build_params_and_trap" do_with_logging prepare_rootfs_build_params_and_trap