ALSA: sound/isa: 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>

sound/isa/Kconfig

@@ -425,7 +425,7 @@ config SND_WAVEFRONT
 
 config SND_MSND_PINNACLE
 	tristate "Turtle Beach MultiSound Pinnacle/Fiji driver"
-	depends on X86 && EXPERIMENTAL
+	depends on X86
 	select FW_LOADER
 	select SND_MPU401_UART
 	select SND_PCM
@@ -438,7 +438,7 @@ config SND_MSND_PINNACLE
 
 config SND_MSND_CLASSIC
 	tristate "Support for Turtle Beach MultiSound Classic, Tahiti, Monterey"
-	depends on X86 && EXPERIMENTAL
+	depends on X86
 	select FW_LOADER
 	select SND_MPU401_UART
 	select SND_PCM