diff --git a/0004-added-a-boilerplace-for-test.patch b/0004-added-a-boilerplace-for-test.patch
deleted file mode 100644
index 7d3226d..0000000
--- a/0004-added-a-boilerplace-for-test.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From 90ec098f1ccd5e253799a656de630bfab7badd3b Mon Sep 17 00:00:00 2001
-From: Kenichi Ishigaki <ishigaki@cpan.org>
-Date: Sat, 26 Jan 2019 06:56:16 +0900
-Subject: [PATCH 091/102] added a boilerplace for test
-
----
- t/virtual_table/unknown_op.t | 15 +++++++++------
- 1 file changed, 9 insertions(+), 6 deletions(-)
-
-diff --git a/t/virtual_table/unknown_op.t b/t/virtual_table/unknown_op.t
-index e8fe04b..885c1d2 100644
---- a/t/virtual_table/unknown_op.t
-+++ b/t/virtual_table/unknown_op.t
-@@ -1,7 +1,9 @@
--#!perl -w
--
- use strict;
--use Test::More tests => 4;
-+use warnings;
-+use lib "t/lib";
-+use SQLiteTest;
-+use Test::More;
-+use if -d ".git", "Test::FailWarnings";
- 
- our $scan_results = [
-     { nodepath => 1 },
-@@ -9,8 +11,7 @@ our $scan_results = [
-     { nodepath => 3 },
- ];
- 
--my $dbh = DBI->connect("dbi:SQLite:dbname=:memory:", '', '',
--                        {RaiseError => 1, AutoCommit => 1});
-+my $dbh = connect_ok(RaiseError => 1, AutoCommit => 1);
- 
- # register the module
- $dbh->sqlite_create_module(perl => "DBD::SQLite::VirtualTable::PerlData");
-@@ -90,4 +91,6 @@ is $ok, 1, "We survive an isnull comparison on the right side";
- undef $ok;
- #my $rows = $sth->fetchall_arrayref;
- #use Data::Dumper;
--#warn Dumper $rows;
-\ No newline at end of file
-+#warn Dumper $rows;
-+
-+done_testing;
--- 
-2.19.1
-