defconfigs: update microblaze defconfigs to use new toolchain

Signed-off-by: Spenser Gilliland <spenser@gillilanding.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

configs/qemu_microblazebe_mmu_defconfig

@@ -2,13 +2,6 @@
 BR2_microblaze=y
 BR2_microblazebe=y
 
-# Special toolchain
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_V2=y
-BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
-BR2_TOOLCHAIN_EXTERNAL_CXX=y
-
 # System
 BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
 

configs/qemu_microblazeel_mmu_defconfig

@@ -2,13 +2,6 @@
 BR2_microblaze=y
 BR2_microblazeel=y
 
-# Toolchain
-BR2_TOOLCHAIN_EXTERNAL=y
-BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEEL_V2=y
-BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
-BR2_TOOLCHAIN_EXTERNAL_CXX=y
-
 # System
 BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"