Revert "meta-ohos-core: toolchain: Switch defaults to use clang, compiler-rt and libc++"

This reverts commit a07e1f56.

Forum: https://forum.ostc-eu.org/t/reverting-compiler-back-to-gcc/76/3


Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>

meta-ohos-core/conf/distro/allscenarios-linux.conf

@@ -12,10 +12,6 @@ DISTRO_VERSION = "0.1.99"
 
 TCLIBC ?= "musl"
 
-TOOLCHAIN ?= "clang"
-RUNTIME ?= "llvm"
-LIBCPLUSPLUS ?= "--stdlib=libc++"
-CLANGSDK ?= "1"
 BINUVERSION ?= "2.36%"
 
 INIT_MANAGER = "systemd"