diff --git a/libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp b/libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp
--- a/libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/format_to.pass.cpp
@@ -11,10 +11,6 @@
 // TODO FMT Evaluate gcc-11 status
 // UNSUPPORTED: gcc-11
 
-// The tests write fixed size buffer, make sure it remains in bounds.
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1
-// UNSUPPORTED: libcxx-no-debug-mode
-
 // <format>
 
 // template<class Out, class... Args>
diff --git a/libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp b/libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp
--- a/libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/vformat_to.pass.cpp
@@ -11,10 +11,6 @@
 // TODO FMT Evaluate gcc-11 status
 // UNSUPPORTED: gcc-11
 
-// The tests write fixed size buffer, make sure it remains in bounds.
-// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=1
-// UNSUPPORTED: libcxx-no-debug-mode
-
 // <format>
 
 // template<class Out>