cpufreq: maple: Remove maple driver

This driver is no longer buildable since the PPC_MAPLE platform was
removed, see commit 62f8f30 ("powerpc/64: Remove maple platform").

Remove the driver.

Note that the comment in the driver says it supports "SMU & 970FX
based G5 Macs", but that's not true, that comment was copied from
pmac64-cpufreq.c, which still exists and continues to support those
machines.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/20241112085148.415574-1-mpe@ellerman.id.au

Author: mpe

drivers/cpufreq/Kconfig.powerpc

@@ -17,13 +17,6 @@ config CPU_FREQ_CBE_PMI
 	  frequencies. Using PMI, the processor will not only be able to run at
 	  lower speed, but also at lower core voltage.
 
-config CPU_FREQ_MAPLE
-	bool "Support for Maple 970FX Evaluation Board"
-	depends on PPC_MAPLE
-	help
-	  This adds support for frequency switching on Maple 970FX
-	  Evaluation Board and compatible boards (IBM JS2x blades).
-
 config CPU_FREQ_PMAC
 	bool "Support for Apple PowerBooks"
 	depends on ADB_PMU && PPC32

drivers/cpufreq/Makefile

@@ -92,7 +92,6 @@ obj-$(CONFIG_ARM_VEXPRESS_SPC_CPUFREQ)	+= vexpress-spc-cpufreq.o
 obj-$(CONFIG_CPU_FREQ_CBE)		+= ppc-cbe-cpufreq.o
 ppc-cbe-cpufreq-y			+= ppc_cbe_cpufreq_pervasive.o ppc_cbe_cpufreq.o
 obj-$(CONFIG_CPU_FREQ_CBE_PMI)		+= ppc_cbe_cpufreq_pmi.o
-obj-$(CONFIG_CPU_FREQ_MAPLE)		+= maple-cpufreq.o
 obj-$(CONFIG_QORIQ_CPUFREQ)   		+= qoriq-cpufreq.o
 obj-$(CONFIG_CPU_FREQ_PMAC)		+= pmac32-cpufreq.o
 obj-$(CONFIG_CPU_FREQ_PMAC64)		+= pmac64-cpufreq.o