【Android】特定のDatabaseファイルを簡単に削除する ref: http://qiita.com/operandoOS/items/8a2ddb21ba868fb816f2

file0.java

// context=Context helper=SQLiteOpenHelper
context.deleteDatabase(helper.getDatabaseName());

file1.java

@Override
public boolean deleteDatabase(String name) {
    try {
        File f = validateFilePath(name, false); // DatabaseファイルのObjectを生成
        return f.delete();
    } catch (Exception e) {
    }
    return false;
}

file2.java

// context=Context helper=SQLiteOpenHelper
SQLiteDatabase.deleteDatabase(context.getDatabasePath(helper.getDatabaseName()));

file3.java

@Override
public boolean deleteDatabase(String name) {
    try {
        File f = validateFilePath(name, false);
        return SQLiteDatabase.deleteDatabase(f);
    } catch (Exception e) {
    }
    return false;
}