[media] smiapp: Remove unused quirk register functionality

The quirk registers mechanism which allows register to have a static read
access value from the sensor specific quirks, is not used. Remove it. It is
to be replaced by a more generic register diversion quirk soon.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/i2c/smiapp/smiapp-regs.c

@@ -172,9 +172,6 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val,
 	    && len != SMIA_REG_32BIT)
 		return -EINVAL;
 
-	if (smiapp_quirk_reg(sensor, reg, val))
-		goto found_quirk;
-
 	if (len == SMIA_REG_8BIT && !only8)
 		rval = ____smiapp_read(sensor, (u16)reg, len, val);
 	else
@@ -182,7 +179,6 @@ static int __smiapp_read(struct smiapp_sensor *sensor, u32 reg, u32 *val,
 	if (rval < 0)
 		return rval;
 
-found_quirk:
 	if (reg & SMIA_REG_FLAG_FLOAT)
 		*val = float_to_u32_mul_1000000(client, *val);