hwmon: remove amd_energy driver in Makefile

Commit 9049572f ("hwmon: Remove amd_energy driver") removes the driver,
but misses to adjust the Makefile.

Hence, ./scripts/checkkconfigsymbols.py warns:

SENSORS_AMD_ENERGY
Referencing files: drivers/hwmon/Makefile

Remove the missing piece of this driver removal.

Fixes: 9049572f ("hwmon: Remove amd_energy driver")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20210817084811.10673-1-lukas.bulwahn@gmail.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/Makefile

@@ -45,7 +45,6 @@ obj-$(CONFIG_SENSORS_ADT7462)	+= adt7462.o
 obj-$(CONFIG_SENSORS_ADT7470)	+= adt7470.o
 obj-$(CONFIG_SENSORS_ADT7475)	+= adt7475.o
 obj-$(CONFIG_SENSORS_AHT10)	+= aht10.o
-obj-$(CONFIG_SENSORS_AMD_ENERGY) += amd_energy.o
 obj-$(CONFIG_SENSORS_APPLESMC)	+= applesmc.o
 obj-$(CONFIG_SENSORS_ARM_SCMI)	+= scmi-hwmon.o
 obj-$(CONFIG_SENSORS_ARM_SCPI)	+= scpi-hwmon.o