Hypervisor build subsystem does not need COMPILE_ARCH/COMPILE_SUBARCH.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

xen/Rules.mk

@@ -28,11 +28,7 @@ CFLAGS := $(shell echo $(CFLAGS) | sed -e 's/-f[^ ]*omit-frame-pointer//g')
 endif
 
 # Set ARCH/SUBARCH appropriately.
-override COMPILE_SUBARCH := $(XEN_COMPILE_ARCH)
 override TARGET_SUBARCH  := $(XEN_TARGET_ARCH)
-override COMPILE_ARCH    := $(shell echo $(XEN_COMPILE_ARCH) | \
-                              sed -e 's/x86.*/x86/' \
-                                  -e 's/powerpc.*/powerpc/')
 override TARGET_ARCH     := $(shell echo $(XEN_TARGET_ARCH) | \
                               sed -e 's/x86.*/x86/' \
                                   -e 's/powerpc.*/powerpc/')

xen/arch/ia64/Rules.mk

@@ -14,10 +14,6 @@ xen_ia64_tlb_track	?= y
 xen_ia64_tlb_track_cnt	?= n
 xen_ia64_tlbflush_clock	?= y
 
-ifneq ($(COMPILE_ARCH),$(TARGET_ARCH))
-CROSS_COMPILE ?= /usr/local/sp_env/v2.2.5/i686/bin/ia64-unknown-linux-
-endif
-
 # Used only by linux/Makefile.
 AFLAGS_KERNEL  += -mconstant-gp -nostdinc $(CPPFLAGS)