[POWERPC] Remove unused CONFIG_WANT_DEVICE_TREE

CONFIG_DEVICE_TREE was the only user of CONFIG_WANT_DEVICE_TREE but
it was removed in commit id 25431333
(bootwrapper: Build multiple cuImages).

This removes CONFIG_WANT_DEVICE_TREE from Kconfig and the defconfigs.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/Kconfig

@@ -442,10 +442,6 @@ config SECCOMP
 
 	  If unsure, say Y. Only embedded should say N here.
 
-config WANT_DEVICE_TREE
-	bool
-	default n
-
 endmenu
 
 config ISA_DMA_API

arch/powerpc/platforms/512x/Kconfig

@@ -13,7 +13,6 @@ config MPC5121_ADS
 	bool "Freescale MPC5121E ADS"
 	depends on PPC_MULTIPLATFORM && PPC32
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 	select PPC_MPC5121
 	help
 	  This option enables support for the MPC5121E ADS board.

arch/powerpc/platforms/52xx/Kconfig

@@ -8,7 +8,6 @@ config PPC_MPC5200_SIMPLE
 	bool "Generic support for simple MPC5200 based boards"
 	depends on PPC_MPC52xx
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 	help
 	  This option enables support for a simple MPC52xx based boards which
 	  do not need a custom platform specific setup. Such boards are
@@ -35,7 +34,6 @@ config PPC_LITE5200
 	bool "Freescale Lite5200 Eval Board"
 	depends on PPC_MPC52xx
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 
 config PPC_MPC5200_BUGFIX
 	bool "MPC5200 (L25R) bugfix support"

arch/powerpc/platforms/Kconfig

@@ -15,7 +15,6 @@ config PPC_MULTIPLATFORM
 config PPC_82xx
 	bool "Freescale 82xx"
 	depends on 6xx
-	select WANT_DEVICE_TREE
 
 config PPC_83xx
 	bool "Freescale 83xx"
@@ -23,7 +22,6 @@ config PPC_83xx
 	select FSL_SOC
 	select MPC83xx
 	select IPIC
-	select WANT_DEVICE_TREE
 	select FSL_EMB_PERFMON
 
 config PPC_86xx

arch/powerpc/platforms/Kconfig.cputype

@@ -29,26 +29,22 @@ config PPC_85xx
 	bool "Freescale 85xx"
 	select E500
 	select FSL_SOC
-	select WANT_DEVICE_TREE
 	select MPC85xx
 
 config PPC_8xx
 	bool "Freescale 8xx"
 	select FSL_SOC
 	select 8xx
-	select WANT_DEVICE_TREE
 	select PPC_LIB_RHEAP
 
 config 40x
 	bool "AMCC 40x"
 	select PPC_DCR_NATIVE
-	select WANT_DEVICE_TREE
 	select PPC_UDBG_16550
 
 config 44x
 	bool "AMCC 44x"
 	select PPC_DCR_NATIVE
-	select WANT_DEVICE_TREE
 	select PPC_UDBG_16550
 
 config E200

arch/powerpc/platforms/embedded6xx/Kconfig

@@ -24,7 +24,6 @@ config STORCENTER
 	select MPIC
 	select FSL_SOC
 	select PPC_UDBG_16550 if SERIAL_8250
-	select WANT_DEVICE_TREE
 	select MPC10X_OPENPIC
 	select MPC10X_BRIDGE
 	help
@@ -37,7 +36,6 @@ config MPC7448HPC2
 	select TSI108_BRIDGE
 	select DEFAULT_UIMAGE
 	select PPC_UDBG_16550
-	select WANT_DEVICE_TREE
 	select TSI108_BRIDGE
 	help
 	  Select MPC7448HPC2 if configuring for Freescale MPC7448HPC2 (Taiga)
@@ -48,7 +46,6 @@ config PPC_HOLLY
 	depends on EMBEDDED6xx
 	select TSI108_BRIDGE
 	select PPC_UDBG_16550
-	select WANT_DEVICE_TREE
 	select TSI108_BRIDGE
 	help
 	  Select PPC_HOLLY if configuring for an IBM 750GX/CL Eval
@@ -59,7 +56,6 @@ config PPC_PRPMC2800
 	depends on EMBEDDED6xx
 	select MV64X60
 	select NOT_COHERENT_CACHE
-	select WANT_DEVICE_TREE
 	help
 	  This option enables support for the Motorola PrPMC2800 board