Remove Insert function

- Insert is only used in test.
- Upsert do same thing as Insert.

Change-Id: Ib5f8e693e71c895b83e43f6b51cebdc698bf744b

core/data/src/test/kotlin/com/google/samples/apps/nowinandroid/core/data/testdoubles/TestNewsResourceDao.kt

@@ -92,21 +92,6 @@ class TestNewsResourceDao : NewsResourceDao {
                 result.map { it.entity.id }
             }
 
-    override suspend fun insertOrIgnoreNewsResources(
-        entities: List<NewsResourceEntity>,
-    ): List<Long> {
-        entitiesStateFlow.update { oldValues ->
-            // Old values come first so new values don't overwrite them
-            (oldValues + entities)
-                .distinctBy(NewsResourceEntity::id)
-                .sortedWith(
-                    compareBy(NewsResourceEntity::publishDate).reversed(),
-                )
-        }
-        // Assume no conflicts on insert
-        return entities.map { it.id.toLong() }
-    }
-
     override suspend fun upsertNewsResources(newsResourceEntities: List<NewsResourceEntity>) {
         entitiesStateFlow.update { oldValues ->
             // New values come first so they overwrite old values

core/database/src/main/kotlin/com/google/samples/apps/nowinandroid/core/database/dao/NewsResourceDao.kt

@@ -96,12 +96,6 @@ interface NewsResourceDao {
         filterNewsIds: Set<String> = emptySet(),
     ): Flow<List<String>>
 
-    /**
-     * Inserts [entities] into the db if they don't exist, and ignores those that do
-     */
-    @Insert(onConflict = OnConflictStrategy.IGNORE)
-    suspend fun insertOrIgnoreNewsResources(entities: List<NewsResourceEntity>): List<Long>
-
     /**
      * Inserts or updates [newsResourceEntities] in the db under the specified primary keys
      */