Removal of RC4 certs and fixes to docs and tests

Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
diff --git a/docs/3.0-migration-guide.d/rename_the__ret_functions.md b/docs/3.0-migration-guide.d/rename_the__ret_functions.md
index 44435f8..875164b 100644
--- a/docs/3.0-migration-guide.d/rename_the__ret_functions.md
+++ b/docs/3.0-migration-guide.d/rename_the__ret_functions.md
@@ -13,14 +13,6 @@
 |------------------------------|--------------------------|
 | mbedtls_ctr_drbg_update_ret  | mbedtls_ctr_drbg_update  |
 | mbedtls_hmac_drbg_update_ret | mbedtls_hmac_drbg_update |
-| mbedtls_md2_starts_ret       | mbedtls_md2_starts       |
-| mbedtls_md2_update_ret       | mbedtls_md2_update       |
-| mbedtls_md2_finish_ret       | mbedtls_md2_finish       |
-| mbedtls_md2_ret              | mbedtls_md2              |
-| mbedtls_md4_starts_ret       | mbedtls_md4_starts       |
-| mbedtls_md4_update_ret       | mbedtls_md4_update       |
-| mbedtls_md4_finish_ret       | mbedtls_md4_finish       |
-| mbedtls_md4_ret              | mbedtls_md4              |
 | mbedtls_md5_starts_ret       | mbedtls_md5_starts       |
 | mbedtls_md5_update_ret       | mbedtls_md5_update       |
 | mbedtls_md5_finish_ret       | mbedtls_md5_finish       |
diff --git a/docs/3.0-migration-guide.md b/docs/3.0-migration-guide.md
index a4a59b8..d0ba43d 100644
--- a/docs/3.0-migration-guide.md
+++ b/docs/3.0-migration-guide.md
@@ -22,7 +22,7 @@
 Deprecated functions were removed from hashing modules
 ------------------------------------------------------
 
-Modules: MD2, MD4, MD5, SHA1, SHA256, SHA512, MD.
+Modules: MD5, SHA1, SHA256, SHA512, MD.
 
 - The functions `mbedtls_xxx_starts()`, `mbedtls_xxx_update()`,
   `mbedtls_xxx_finish()` and `mbedtls_xxx()` were removed. Please use the