[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 25431333813686654907ab987fb5de10c10a16db
(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>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 485513c..5b8d838 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -442,10 +442,6 @@
 
 	  If unsure, say Y. Only embedded should say N here.
 
-config WANT_DEVICE_TREE
-	bool
-	default n
-
 endmenu
 
 config ISA_DMA_API
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
index c6fa49e..4c0da0c 100644
--- a/arch/powerpc/platforms/512x/Kconfig
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -13,7 +13,6 @@
 	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.
diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index 515f244..cf945d5 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -8,7 +8,6 @@
 	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 @@
 	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"
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index fcedbec..0afd225 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -15,7 +15,6 @@
 config PPC_82xx
 	bool "Freescale 82xx"
 	depends on 6xx
-	select WANT_DEVICE_TREE
 
 config PPC_83xx
 	bool "Freescale 83xx"
@@ -23,7 +22,6 @@
 	select FSL_SOC
 	select MPC83xx
 	select IPIC
-	select WANT_DEVICE_TREE
 	select FSL_EMB_PERFMON
 
 config PPC_86xx
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 69941ba..73d81ce 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -29,26 +29,22 @@
 	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
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index 6c80837..4290889 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -24,7 +24,6 @@
 	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 @@
 	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 @@
 	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 @@
 	depends on EMBEDDED6xx
 	select MV64X60
 	select NOT_COHERENT_CACHE
-	select WANT_DEVICE_TREE
 	help
 	  This option enables support for the Motorola PrPMC2800 board