SOC_SINGLE_VALUE_EXT() has no users, so remove it.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---

New since v1.

 include/sound/soc.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 6bb2fca044c5e..01151a6ada350 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -51,9 +51,6 @@ struct platform_device;
 	.sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable})
 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
 	SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
-#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
-	((unsigned long)&(struct soc_mixer_control) \
-	{.reg = xreg, .max = xmax, .invert = xinvert})
 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
 	((unsigned long)&(struct soc_mixer_control) \
 	{.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
-- 
2.39.5