Remove body of migration 293.

Author: alex-signal

app/src/main/java/org/thoughtcrime/securesms/database/helpers/SignalDatabaseMigrations.kt

@@ -147,7 +147,6 @@ import org.thoughtcrime.securesms.database.helpers.migration.V289_AddQuoteTarget
 import org.thoughtcrime.securesms.database.helpers.migration.V290_AddArchiveThumbnailTransferStateColumn
 import org.thoughtcrime.securesms.database.helpers.migration.V291_NullOutRemoteKeyIfEmpty
 import org.thoughtcrime.securesms.database.helpers.migration.V292_AddPollTables
-import org.thoughtcrime.securesms.database.helpers.migration.V293_LastResortKeyTupleTableMigration
 import org.thoughtcrime.securesms.database.helpers.migration.V294_RemoveLastResortKeyTupleColumnConstraintMigration
 import org.thoughtcrime.securesms.database.helpers.migration.V295_AddLastRestoreKeyTypeTableIfMissingMigration
 import org.thoughtcrime.securesms.database.SQLiteDatabase as SignalSqliteDatabase
@@ -303,7 +302,7 @@ object SignalDatabaseMigrations {
     290 to V290_AddArchiveThumbnailTransferStateColumn,
     291 to V291_NullOutRemoteKeyIfEmpty,
     292 to V292_AddPollTables,
-    293 to V293_LastResortKeyTupleTableMigration,
+    // 293 to V293_LastResortKeyTupleTableMigration, - removed due to crashing on some devices.
     294 to V294_RemoveLastResortKeyTupleColumnConstraintMigration,
     295 to V295_AddLastRestoreKeyTypeTableIfMissingMigration
   )

app/src/main/java/org/thoughtcrime/securesms/database/helpers/migration/V293_LastResortKeyTupleTableMigration.kt

@@ -14,7 +14,7 @@ import org.thoughtcrime.securesms.database.SQLiteDatabase
 @Suppress("ClassName")
 object V294_RemoveLastResortKeyTupleColumnConstraintMigration : SignalDatabaseMigration {
   override fun migrate(context: Application, db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
-    db.execSQL("DROP TABLE last_resort_key_tuple")
+    db.execSQL("DROP TABLE IF EXISTS last_resort_key_tuple")
 
     db.execSQL(
       """