ALSA: sound/drivers: remove CONFIG_EXPERIMENTAL

This config item has not carried much meaning for a while now and is
almost always enabled by default. As agreed during the Linux kernel
summit, remove it.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index fe5ae09..5e43841 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -35,7 +35,6 @@
 	tristate "PC-Speaker support (READ HELP!)"
 	depends on PCSPKR_PLATFORM && X86 && HIGH_RES_TIMERS
 	depends on INPUT
-	depends on EXPERIMENTAL
 	select SND_PCM
 	help
 	  If you don't have a sound card in your computer, you can include a