Remove armv5te

This architecture only existed for unbundled use, but even the NDK is
removing support in their r17 release, so just remove support for it.

Test: build/soong/build_test.bash -only-config
Test: check buildserver configs, I don't see anything still using armv5
Change-Id: Ic183b510c9ada94438bd4cc2b9362fa438a29ced
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 73b1c04..01cf3f5 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -50,7 +50,7 @@
 endif
 
 ifeq ($(strip $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT)),)
-TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := armv5te
+$(error TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT must be set)
 endif
 
 TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT).mk