cpufreq: remove unused arm_big_little_dt driver

Most of the ARM platforms used cpufreq-dt driver irrespective of
whether it's big-little(HMP) or SMP system. This arm_big_little_dt is
not used actively at all.

So let's remove the driver, so that it need not be maintained.

Signed-off-by: Sudeep Holla <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>

MAINTAINERS

@@ -3838,7 +3838,6 @@ W:	http://www.arm.com/products/processors/technologies/biglittleprocessing.php
 S:	Maintained
 F:	drivers/cpufreq/arm_big_little.h
 F:	drivers/cpufreq/arm_big_little.c
-F:	drivers/cpufreq/arm_big_little_dt.c
 
 CPU POWER MONITORING SUBSYSTEM
 M:	Thomas Renninger <[email protected]>

drivers/cpufreq/Kconfig.arm

@@ -35,13 +35,6 @@ config ARM_BIG_LITTLE_CPUFREQ
 	help
 	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
-config ARM_DT_BL_CPUFREQ
-	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
-	depends on ARM_BIG_LITTLE_CPUFREQ && OF
-	help
-	  This enables probing via DT for Generic CPUfreq driver for ARM
-	  big.LITTLE platform. This gets frequency tables from DT.
-
 config ARM_SCPI_CPUFREQ
 	tristate "SCPI based CPUfreq driver"
 	depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI

drivers/cpufreq/Makefile

@@ -48,9 +48,6 @@ obj-$(CONFIG_X86_SFI_CPUFREQ)		+= sfi-cpufreq.o
 ##################################################################################
 # ARM SoC drivers
 obj-$(CONFIG_ARM_BIG_LITTLE_CPUFREQ)	+= arm_big_little.o
-# big LITTLE per platform glues. Keep DT_BL_CPUFREQ as the last entry in all big
-# LITTLE drivers, so that it is probed last.
-obj-$(CONFIG_ARM_DT_BL_CPUFREQ)		+= arm_big_little_dt.o
 
 obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ)	+= armada-37xx-cpufreq.o
 obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ)	+= brcmstb-avs-cpufreq.o