[Driver] Gnu.cpp: drop an unneeded special rule related to sysroot
authorFangrui Song <i@maskray.me>
Sun, 21 Mar 2021 04:32:55 +0000 (21:32 -0700)
committerFangrui Song <i@maskray.me>
Sun, 21 Mar 2021 04:32:55 +0000 (21:32 -0700)
commit56700e937903969a4a95f68c59e38e35daaaa1ea
tree0dd245b0dbb29476963645b9d771a7a3e64508a9
parent0ad0c476efdbc6b8e933edc32e6f943ed3a33b0d
[Driver] Gnu.cpp: drop an unneeded special rule related to sysroot

Seem unnecessary to diverge from GCC here.
Beside, lib/../$OSLibDir can be considered closer to the GCC
installation then the system root. The comment should not apply.
clang/lib/Driver/ToolChains/Gnu.cpp