tree.sh: remove redundant TODO

infinite loop detection was here before. i removed it
because it was bloat. we don't take general user input
here, so careful configuration is all we need.

infinite loops are harmless to the user. they are merely
annoying. they would never be introduced to the user,
because configs are always tested before release.
before commit, even.

we can save the user a few watts of electricity, or we
can Keep It Simple.

Signed-off-by: Leah Rowe <leah@libreboot.org>

include/tree.sh

@@ -231,9 +231,6 @@ configure_project()
 	# override target/tree specific variables from per-target config:
 	while e "$_tcfg" f || [ "$cmd" != "build_project" ]
 	do
-		# TODO: detect infinine loops and throw err.
-		#	(currently mitigated by virtue of configuration)
-
 		printf "Loading %s config: %s\n" "$project" "$_tcfg"
 		eval "`newvar rev tree`"