sched: mark CONFIG_FAIR_GROUP_SCHED as !EXPERIMENTAL

mark CONFIG_FAIR_GROUP_SCHED as !EXPERIMENTAL. All bugs have been
fixed and it's perfect ;-)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/init/Kconfig b/init/Kconfig
index b7dffa8..8b88d0b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -322,7 +322,6 @@
 config FAIR_GROUP_SCHED
 	bool "Fair group CPU scheduler"
 	default y
-	depends on EXPERIMENTAL
 	help
 	  This feature lets CPU scheduler recognize task groups and control CPU
 	  bandwidth allocation to such task groups.