Remove some #ifdef __native_client__ on tests.

mojo/public/c/system/tests/data_pipe_unittest.cc

Index: mojo/public/c/system/tests/data_pipe_unittest.cc
diff --git a/mojo/public/c/system/tests/data_pipe_unittest.cc b/mojo/public/c/system/tests/data_pipe_unittest.cc
index fb89e31a90cffbedb3169fa5e2da2cb3067a59e8..7c0a1e4865e01838e2cd9812af5b16c2acb761ce 100644
--- a/mojo/public/c/system/tests/data_pipe_unittest.cc
+++ b/mojo/public/c/system/tests/data_pipe_unittest.cc
@@ -63,13 +63,7 @@ TEST(DataPipeTest, InvalidHandle) {
             MojoEndReadData(MOJO_HANDLE_INVALID, 1u));
 }
 
-// TODO(ncbray): enable this test once NaCl supports the corresponding APIs.
-#ifdef __native_client__
-#define MAYBE_Basic DISABLED_Basic
-#else
-#define MAYBE_Basic Basic
-#endif
-TEST(DataPipeTest, MAYBE_Basic) {
+TEST(DataPipeTest, Basic) {
   MojoHandle hp = MOJO_HANDLE_INVALID;
   MojoHandle hc = MOJO_HANDLE_INVALID;
   EXPECT_EQ(MOJO_RESULT_OK, MojoCreateDataPipe(nullptr, &hp, &hc));