nios2: kconfig: Remove blank help text

Blank help texts are probably either a typo, a Kconfig misunderstanding,
or some kind of half-committing to adding a help text (in which case a
TODO comment would be clearer, if the help text really can't be added
right away).

Best to remove them, IMO.

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/nios2/Kconfig

@@ -152,7 +152,6 @@ menu "Advanced setup"
 
 config ADVANCED_OPTIONS
 	bool "Prompt for advanced kernel configuration options"
-	help
 
 comment "Default settings for advanced configuration options are used"
 	depends on !ADVANCED_OPTIONS