Revert "Remove MBED_TEST flags"

This reverts commit f087fe9.

Author: teetak01

main.cpp

@@ -15,7 +15,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 // ----------------------------------------------------------------------------
-
+#ifndef MBED_TEST_MODE
 #include "mbed.h"
 #include "kv_config.h"
 #include "mbed-cloud-client/MbedCloudClient.h" // Required for new MbedCloudClient()
@@ -181,3 +181,4 @@ int main(void)
     return 0;
 }
 
+#endif /* MBED_TEST_MODE */