revert aix

Author: huixie90

libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_add.pass.cpp

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: LIBCXX-AIX-FIXME
 // XFAIL: !has-64-bit-atomics
 // UNSUPPORTED: !non-lockfree-atomics
 

libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_sub.pass.cpp

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: LIBCXX-AIX-FIXME
 // XFAIL: !has-64-bit-atomics
 // UNSUPPORTED: !non-lockfree-atomics
 

libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.minus_equals.pass.cpp

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: LIBCXX-AIX-FIXME
 // XFAIL: !has-64-bit-atomics
 // UNSUPPORTED: !non-lockfree-atomics
 

libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.plus_equals.pass.cpp

@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 // UNSUPPORTED: c++03, c++11, c++14, c++17
+// UNSUPPORTED: LIBCXX-AIX-FIXME
 // XFAIL: !has-64-bit-atomics
 // UNSUPPORTED: !non-lockfree-atomics