[libc++] [test] Eliminate libcpp-no-noexcept-function-type and libcpp-no-structured-bindings.

At this point, every supported compiler that claims a -std=c++17 mode
should also support these features.

Differential Revision: https://reviews.llvm.org/D113436

GitOrigin-RevId: 401b76fdf2b328520cc71d829ea726b74bb2192f
diff --git a/test/catch_function_03.pass.cpp b/test/catch_function_03.pass.cpp
index a7832f1..7b7925a 100644
--- a/test/catch_function_03.pass.cpp
+++ b/test/catch_function_03.pass.cpp
@@ -7,7 +7,8 @@
 //===----------------------------------------------------------------------===//
 
 // Can a noexcept function pointer be caught by a non-noexcept catch clause?
-// UNSUPPORTED: no-exceptions, no-noexcept-function-type
+// UNSUPPORTED: c++03, c++11, c++14
+// UNSUPPORTED: no-exceptions
 
 // Support for catching a function pointer including noexcept was shipped in macOS 10.13
 // XFAIL: use_system_cxx_lib && {{.+}}-apple-macosx10.{{9|10|11|12}}
diff --git a/test/catch_member_function_pointer_02.pass.cpp b/test/catch_member_function_pointer_02.pass.cpp
index 3413753..ee81b0c 100644
--- a/test/catch_member_function_pointer_02.pass.cpp
+++ b/test/catch_member_function_pointer_02.pass.cpp
@@ -7,7 +7,8 @@
 //===----------------------------------------------------------------------===//
 
 // Can a noexcept member function pointer be caught by a non-noexcept catch clause?
-// UNSUPPORTED: no-exceptions, no-noexcept-function-type
+// UNSUPPORTED: c++03, c++11, c++14
+// UNSUPPORTED: no-exceptions
 
 // Support for catching a function pointer including noexcept was shipped in macOS 10.13
 // XFAIL: use_system_cxx_lib && {{.+}}-apple-macosx10.{{9|10|11|12}}