thermal/drivers/zx: Remove zx driver

The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210120162400.4115366-3-arnd@kernel.org

Author: arndb

Documentation/devicetree/bindings/thermal/zx2967-thermal.txt

@@ -467,14 +467,6 @@ depends on (ARCH_QCOM && OF) || COMPILE_TEST
 source "drivers/thermal/qcom/Kconfig"
 endmenu
 
-config ZX2967_THERMAL
-	tristate "Thermal sensors on zx2967 SoC"
-	depends on ARCH_ZX || COMPILE_TEST
-	help
-	  Enable the zx2967 thermal sensors driver, which supports
-	  the primitive temperature sensor embedded in zx2967 SoCs.
-	  This sensor generates the real time die temperature.
-
 config UNIPHIER_THERMAL
 	tristate "Socionext UniPhier thermal driver"
 	depends on ARCH_UNIPHIER || COMPILE_TEST

drivers/thermal/Kconfig

@@ -56,7 +56,6 @@ obj-y				+= tegra/
 obj-$(CONFIG_HISI_THERMAL)     += hisi_thermal.o
 obj-$(CONFIG_MTK_THERMAL)	+= mtk_thermal.o
 obj-$(CONFIG_GENERIC_ADC_THERMAL)	+= thermal-generic-adc.o
-obj-$(CONFIG_ZX2967_THERMAL)	+= zx2967_thermal.o
 obj-$(CONFIG_UNIPHIER_THERMAL)	+= uniphier_thermal.o
 obj-$(CONFIG_AMLOGIC_THERMAL)     += amlogic_thermal.o
 obj-$(CONFIG_SPRD_THERMAL)	+= sprd_thermal.o