diff --git a/tools/pycert_bearssl/__pycache__/cert_util.cpython-37.pyc b/tools/pycert_bearssl/__pycache__/cert_util.cpython-37.pyc
deleted file mode 100644
index ea89d36..0000000
Binary files a/tools/pycert_bearssl/__pycache__/cert_util.cpython-37.pyc and /dev/null differ
diff --git a/tools/pycert_bearssl/cert.cer b/tools/pycert_bearssl/cert.cer
deleted file mode 100644
index 37b805a..0000000
--- a/tools/pycert_bearssl/cert.cer
+++ /dev/null
@@ -1,20 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIDPDCCAiQCCQCzrL/aem1hqTANBgkqhkiG9w0BAQsFADBgMQswCQYDVQQGEwJV
-UzELMAkGA1UECAwCT1IxEjAQBgNVBAcMCUNvcnZhbGxpczESMBAGA1UECgwJT1BF
-blMgTGFiMQwwCgYDVQQLDANSJkQxDjAMBgNVBAMMBU9QRW5TMB4XDTE5MDcxODE4
-MzQzM1oXDTIwMDcxNzE4MzQzM1owYDELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAk9S
-MRIwEAYDVQQHDAlDb3J2YWxsaXMxEjAQBgNVBAoMCU9QRW5TIExhYjEMMAoGA1UE
-CwwDUiZEMQ4wDAYDVQQDDAVPUEVuUzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCC
-AQoCggEBAJQmpP/fydEJL3yh8KdPNmlzuIpINMBjeVgog6zuRlUOrSHlMZx8Ritw
-EtkrKfZciNOkEGef0Xn+HGQUBPwZilfEmp9cdaPg9Z1ORX7Vp8CsPIEghv/AR8py
-Wg8MTPEde/t1lR1EznuEPkOkiaQrserknOYZPN/jPrqnhgujn3Q2IFhFqO4MId1F
-SKdjgTod82wUDHUjnN8kZLUa68mI4UkKyIl+pZxM81MheA4P63x4eFahAzItoGbf
-oCrmC6kb9pxjzGpQcyUukHNzfwFLQ/pKP2aXQvv6USt6LB37vqZBRjuaCV36ncGP
-r5b7CmOw/1DJ/g6fVsVti/IWa7+eJjECAwEAATANBgkqhkiG9w0BAQsFAAOCAQEA
-BpB3ljvK1WpKLh0mVHuI6n3TH08kbFSvDw44/SGrWRfMgHGqJOBP2cn1ENKKjQ6N
-/fPh6S9i18n4rIP7B1+IphxMlYX8sQU/qIuqcFU8Y++Hsc1UN0SFvEBi3aHLuceN
-jShQ9N+VIrk/oAJrrqcqDaeuGBsZdJ158q62lQ3G6bk9te/Ly1YeF/ddOOT4zyQp
-VJO5ZlmWstpQIePk1I4ZEhh7TMjm/JjNI8Kn6MZWJw6PE8KodSr6m/YuxJ551pd4
-2u72Ve7UOAAdirVqMvwhKEd50tsaE71PLzyi3cv/A8/i6mHMzI86N1RJlMEbNf1k
-VMO9Ofel+PbbwnnNhULR8w==
------END CERTIFICATE-----
\ No newline at end of file
diff --git a/tools/pycert_bearssl/certificates.h b/tools/pycert_bearssl/certificates.h
deleted file mode 100644
index f271082..0000000
--- a/tools/pycert_bearssl/certificates.h
+++ /dev/null
@@ -1,77 +0,0 @@
-#ifndef _CERTIFICATES_H_
-#define _CERTIFICATES_H_
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-/* This file is auto-generated by the pycert_bearssl tool.  Do not change it manually.
- * Certificates are BearSSL br_x509_trust_anchor format.  Included certs:
- *
- * Index:    0
- * Label:    GlobalSign
- * Subject:  OU=GlobalSign Root CA - R2,O=GlobalSign,CN=GlobalSign
- * Domain(s): script.google.com
- */
-
-#define TAs_NUM 1
-
-static const unsigned char TA_DN0[] = {
-    0x30, 0x4c, 0x31, 0x20, 0x30, 0x1e, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13,
-    0x17, 0x47, 0x6c, 0x6f, 0x62, 0x61, 0x6c, 0x53, 0x69, 0x67, 0x6e, 0x20,
-    0x52, 0x6f, 0x6f, 0x74, 0x20, 0x43, 0x41, 0x20, 0x2d, 0x20, 0x52, 0x32,
-    0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x0a, 0x47,
-    0x6c, 0x6f, 0x62, 0x61, 0x6c, 0x53, 0x69, 0x67, 0x6e, 0x31, 0x13, 0x30,
-    0x11, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x0a, 0x47, 0x6c, 0x6f, 0x62,
-    0x61, 0x6c, 0x53, 0x69, 0x67, 0x6e,
-};
-
-static const unsigned char TA_RSA_N0[] = {
-    0xa6, 0xcf, 0x24, 0x0e, 0xbe, 0x2e, 0x6f, 0x28, 0x99, 0x45, 0x42, 0xc4,
-    0xab, 0x3e, 0x21, 0x54, 0x9b, 0x0b, 0xd3, 0x7f, 0x84, 0x70, 0xfa, 0x12,
-    0xb3, 0xcb, 0xbf, 0x87, 0x5f, 0xc6, 0x7f, 0x86, 0xd3, 0xb2, 0x30, 0x5c,
-    0xd6, 0xfd, 0xad, 0xf1, 0x7b, 0xdc, 0xe5, 0xf8, 0x60, 0x96, 0x09, 0x92,
-    0x10, 0xf5, 0xd0, 0x53, 0xde, 0xfb, 0x7b, 0x7e, 0x73, 0x88, 0xac, 0x52,
-    0x88, 0x7b, 0x4a, 0xa6, 0xca, 0x49, 0xa6, 0x5e, 0xa8, 0xa7, 0x8c, 0x5a,
-    0x11, 0xbc, 0x7a, 0x82, 0xeb, 0xbe, 0x8c, 0xe9, 0xb3, 0xac, 0x96, 0x25,
-    0x07, 0x97, 0x4a, 0x99, 0x2a, 0x07, 0x2f, 0xb4, 0x1e, 0x77, 0xbf, 0x8a,
-    0x0f, 0xb5, 0x02, 0x7c, 0x1b, 0x96, 0xb8, 0xc5, 0xb9, 0x3a, 0x2c, 0xbc,
-    0xd6, 0x12, 0xb9, 0xeb, 0x59, 0x7d, 0xe2, 0xd0, 0x06, 0x86, 0x5f, 0x5e,
-    0x49, 0x6a, 0xb5, 0x39, 0x5e, 0x88, 0x34, 0xec, 0xbc, 0x78, 0x0c, 0x08,
-    0x98, 0x84, 0x6c, 0xa8, 0xcd, 0x4b, 0xb4, 0xa0, 0x7d, 0x0c, 0x79, 0x4d,
-    0xf0, 0xb8, 0x2d, 0xcb, 0x21, 0xca, 0xd5, 0x6c, 0x5b, 0x7d, 0xe1, 0xa0,
-    0x29, 0x84, 0xa1, 0xf9, 0xd3, 0x94, 0x49, 0xcb, 0x24, 0x62, 0x91, 0x20,
-    0xbc, 0xdd, 0x0b, 0xd5, 0xd9, 0xcc, 0xf9, 0xea, 0x27, 0x0a, 0x2b, 0x73,
-    0x91, 0xc6, 0x9d, 0x1b, 0xac, 0xc8, 0xcb, 0xe8, 0xe0, 0xa0, 0xf4, 0x2f,
-    0x90, 0x8b, 0x4d, 0xfb, 0xb0, 0x36, 0x1b, 0xf6, 0x19, 0x7a, 0x85, 0xe0,
-    0x6d, 0xf2, 0x61, 0x13, 0x88, 0x5c, 0x9f, 0xe0, 0x93, 0x0a, 0x51, 0x97,
-    0x8a, 0x5a, 0xce, 0xaf, 0xab, 0xd5, 0xf7, 0xaa, 0x09, 0xaa, 0x60, 0xbd,
-    0xdc, 0xd9, 0x5f, 0xdf, 0x72, 0xa9, 0x60, 0x13, 0x5e, 0x00, 0x01, 0xc9,
-    0x4a, 0xfa, 0x3f, 0xa4, 0xea, 0x07, 0x03, 0x21, 0x02, 0x8e, 0x82, 0xca,
-    0x03, 0xc2, 0x9b, 0x8f,
-};
-
-static const unsigned char TA_RSA_E0[] = {
-    0x01, 0x00, 0x01,
-};
-
-static const br_x509_trust_anchor TAs[] = {
-    {
-        { (unsigned char *)TA_DN0, sizeof TA_DN0 },
-        BR_X509_TA_CA,
-        {
-            BR_KEYTYPE_RSA,
-            { .rsa = {
-                (unsigned char *)TA_RSA_N0, sizeof TA_RSA_N0,
-                (unsigned char *)TA_RSA_E0, sizeof TA_RSA_E0,
-            } }
-        }
-    },
-};
-
-#ifdef __cplusplus
-} /* extern "C" */
-#endif
-
-#endif /* ifndef _CERTIFICATES_H_ */