Make metadata field mandatory for program info struct.

Test: VTS, manual
Change-Id: I3e4ed1f203dc28315d7c7db10c9ce3d83e4ec59d
diff --git a/services/radio/HidlUtils.h b/services/radio/HidlUtils.h
index 091abb7..c771060 100644
--- a/services/radio/HidlUtils.h
+++ b/services/radio/HidlUtils.h
@@ -38,8 +38,7 @@
     static void convertBandConfigToHal(BandConfig *halConfig,
                                        const radio_hal_band_config_t *config);
     static void convertProgramInfoFromHal(radio_program_info_t *info,
-                                          const ProgramInfo *halInfo,
-                                          bool withMetadata);
+                                          const ProgramInfo *halInfo);
     static void convertMetaDataFromHal(radio_metadata_t **metadata,
                                        const hidl_vec<MetaData>& halMetadata,
                                        uint32_t channel,