fix compiler error of profiler_test in ONLY_CPU mode

paddle/fluid/platform/profiler_test.cc

@@ -13,7 +13,9 @@ See the License for the specific language governing permissions and
 limitations under the License. */
 
 #include "paddle/fluid/platform/profiler.h"
+#ifdef PADDLE_WITH_CUDA
 #include "cuda_runtime.h"
+#endif
 #include "gtest/gtest.h"
 
 TEST(Event, CpuElapsedTime) {
@@ -159,6 +161,7 @@ TEST(RecordEvent, RecordEvent) {
   DisableProfiler(EventSortingKey::kTotal, "/tmp/profiler");
 }
 
+#ifdef PADDLE_WITH_CUDA
 TEST(TMP, stream_wait) {
   cudaStream_t stream;
   cudaStreamCreate(&stream);
@@ -166,3 +169,4 @@ TEST(TMP, stream_wait) {
   cudaStreamSynchronize(stream);
   cudaStreamSynchronize(stream);
 }
+#endif