Add extra path validation tests for EKU processing

net/data/verify_certificate_chain_unittest/target-lacks-eku/generate-chains.py

Index: net/data/verify_certificate_chain_unittest/target-lacks-eku/generate-chains.py
diff --git a/net/data/verify_certificate_chain_unittest/target-lacks-eku/generate-chains.py b/net/data/verify_certificate_chain_unittest/target-lacks-eku/generate-chains.py
deleted file mode 100755
index 666b1c3618185731bfacd1aa42337598b11b072f..0000000000000000000000000000000000000000
--- a/net/data/verify_certificate_chain_unittest/target-lacks-eku/generate-chains.py
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/usr/bin/python
-# Copyright (c) 2017 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""Certificate chain with 1 intermediate and a trusted root. The target has no
-Extended Key Usage extension (meaning it is unrestricted). Verification is
-expected to succeed."""
-
-import sys
-sys.path += ['..']
-
-import common
-
-# Self-signed root certificate (used as trust anchor).
-root = common.create_self_signed_root_certificate('Root')
-
-# Intermediate certificate.
-intermediate = common.create_intermediate_certificate('Intermediate', root)
-
-# Target certificate.
-target = common.create_end_entity_certificate('Target', intermediate)
-target.get_extensions().remove_property('extendedKeyUsage')
-
-chain = [target, intermediate, root]
-common.write_chain(__doc__, chain, 'chain.pem')