Remove irrelevant TODO section

Issue#6 is no longer valid as per openssl issue
https://github.com/openssl/openssl/issues/20663

Change-Id: I01c5a61205756c1adda007408bf80a8c1aa1820d
Signed-off-by: Ravi Teja <raviteja28031990@gmail.com>
diff --git a/certs_manager.cpp b/certs_manager.cpp
index c70eef0..6408f08 100644
--- a/certs_manager.cpp
+++ b/certs_manager.cpp
@@ -547,7 +547,6 @@
 
     // set version of x509 req
     int nVersion = 1;
-    // TODO: Issue#6 need to make version number configurable
     X509ReqPtr x509Req(X509_REQ_new(), ::X509_REQ_free);
     ret = X509_REQ_set_version(x509Req.get(), nVersion);
     if (ret == 0)