arm: Remove PXA architecture support

With the last platform for this architecture removed, remove the rest of
the architecture support as well.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 423fca2..434c5e9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -330,15 +330,6 @@
 	select SYS_ARM_MPU
 	select SYS_CACHE_SHIFT_6
 
-config CPU_PXA
-	bool
-	select SYS_CACHE_SHIFT_5
-	imply SYS_ARM_MMU
-
-config CPU_PXA27X
-	bool
-	select CPU_PXA
-
 config CPU_SA1100
 	bool
 	select SYS_CACHE_SHIFT_5
@@ -354,7 +345,6 @@
 	default "armv7" if CPU_V7A
 	default "armv7" if CPU_V7R
 	default "armv7m" if CPU_V7M
-	default "pxa" if CPU_PXA
 	default "sa1100" if CPU_SA1100
 	default "armv8" if ARM64
 
@@ -369,14 +359,12 @@
 	default 7 if CPU_V7A
 	default 7 if CPU_V7M
 	default 7 if CPU_V7R
-	default 5 if CPU_PXA
 	default 4 if CPU_SA1100
 	default 8 if ARM64
 
 choice
 	prompt "Select the ARM data write cache policy"
-	default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || \
-					      CPU_PXA || RZA1
+	default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || RZA1
 	default SYS_ARM_CACHE_WRITEBACK
 
 config SYS_ARM_CACHE_WRITEBACK