cpufreq: omap: remove driver

The omap-cpufreq driver is not used in the corresponding defconfigs.
The pseudo platform device to use it was removed by
commit cb6675d ("ARM: OMAP2+: Remove legacy PM init")
10 years ago.

Checking if there is any need to reactivate it:
For omap3, dra7 there is ti-cpufreq to create cpufreq-dt device
For omap2/4/5 there is cpufreq-dt-plat to create cpufreq-dt device.
For omap1 this driver cannot be selected at all.

So no users, no need to reactivate the driver somehow. So remove it.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Link: https://patch.msgid.link/20260108-omap-cpufreq-removal-v1-1-8fe42f130f48@kemnade.info
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Author: akemnade

drivers/cpufreq/Kconfig.arm

@@ -141,11 +141,6 @@ config ARM_MEDIATEK_CPUFREQ_HW
 	  The driver implements the cpufreq interface for this HW engine.
 	  Say Y if you want to support CPUFreq HW.
 
-config ARM_OMAP2PLUS_CPUFREQ
-	bool "TI OMAP2+"
-	depends on ARCH_OMAP2PLUS || COMPILE_TEST
-	default ARCH_OMAP2PLUS
-
 config ARM_QCOM_CPUFREQ_NVMEM
 	tristate "Qualcomm nvmem based CPUFreq"
 	depends on ARCH_QCOM || COMPILE_TEST

drivers/cpufreq/Makefile

@@ -69,7 +69,6 @@ obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ)	+= kirkwood-cpufreq.o
 obj-$(CONFIG_ARM_MEDIATEK_CPUFREQ)	+= mediatek-cpufreq.o
 obj-$(CONFIG_ARM_MEDIATEK_CPUFREQ_HW)	+= mediatek-cpufreq-hw.o
 obj-$(CONFIG_MACH_MVEBU_V7)		+= mvebu-cpufreq.o
-obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ)	+= omap-cpufreq.o
 obj-$(CONFIG_ARM_PXA2xx_CPUFREQ)	+= pxa2xx-cpufreq.o
 obj-$(CONFIG_PXA3xx)			+= pxa3xx-cpufreq.o
 obj-$(CONFIG_ARM_QCOM_CPUFREQ_HW)	+= qcom-cpufreq-hw.o