siso: remove clang++ symlink config

we use precomputed subtree for third_party/llvm-build/Release+Asserts,
so no need to have config for clang++ -> clang.

Bug: b/282608727
Change-Id: Ifa4dd3fa895c0d763ec2b3a25e8b98c010cec21b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4546832
Auto-Submit: Fumitoshi Ukai <ukai@google.com>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1147011}
NOKEYCHECK=True
GitOrigin-RevId: cc757e29e85e0fbbdc05627959b98fe7d576b88e
1 file changed