[libc++] Remove the c++98 Lit feature from the test suite
C++98 and C++03 are effectively aliases as far as Clang is concerned.
As such, allowing both std=c++98 and std=c++03 as Lit parameters is
just slightly confusing, but provides no value. It's similar to allowing
both std=c++17 and std=c++1z, which we don't do.
This was discovered because we had an internal bot that ran the test
suite under both c++98 AND c++03 -- one of which is redundant.
Differential Revision: https://reviews.llvm.org/D80926
diff --git a/libcxxabi/test/unwind_02.pass.cpp b/libcxxabi/test/unwind_02.pass.cpp
index 99a4817..3442bb5 100644
--- a/libcxxabi/test/unwind_02.pass.cpp
+++ b/libcxxabi/test/unwind_02.pass.cpp
@@ -7,7 +7,7 @@
//===----------------------------------------------------------------------===//
// UNSUPPORTED: no-exceptions
-// REQUIRES: c++98 || c++03 || c++11 || c++14
+// REQUIRES: c++03 || c++11 || c++14
#include <assert.h>