[libc++] NFCI: Remove unused Lit parameter sanitizer_library

GitOrigin-RevId: ad6bee87e6b78881223ebd71e52e5a336ef2a65c
diff --git a/test/lit.site.cfg.in b/test/lit.site.cfg.in
index 425b9f2..6c4e944 100644
--- a/test/lit.site.cfg.in
+++ b/test/lit.site.cfg.in
@@ -17,7 +17,6 @@
 config.builtins_library         = "@LIBCXXABI_BUILTINS_LIBRARY@"
 config.enable_threads           = @LIBCXXABI_ENABLE_THREADS@
 config.use_sanitizer            = "@LLVM_USE_SANITIZER@"
-config.sanitizer_library        = "@LIBCXXABI_SANITIZER_LIBRARY@"
 config.enable_32bit             = @LIBCXXABI_BUILD_32_BITS@
 config.target_info              = "@LIBCXXABI_TARGET_INFO@"
 config.executor                 = "@LIBCXXABI_EXECUTOR@"