kleaf: Delete unused symlink for bzlmod.

build/kernel_toolchain_ext.bzl is no longer necessary
with Ia50b0e6f3 (kleaf: kernel_toolchain_ext.bzl use hard-coded //common:build.config.constants.

Bug: 293260835
Change-Id: I8a4b451e133044a2745bed4ec2bf629ff3475874
1 file changed
tree: ca5727b90424fe6ca9d13f571e78a4512db6151f
  1. default.xml