grind out user-certs (SOFTWARE-5162)

Author: edquist

docs/security/certificate-management.md

@@ -13,7 +13,7 @@ reference guide for several of these tools:
 !!! note
     This is a reference document and not introduction on how to install CA certificates or request
     host / user certificates.  Most users will want the [CA overview](../common/ca.md),
-    [host certificate overview](host-certs.md), or [user certificate overview](user-certs.md) documents.
+    [host certificate overview](host-certs.md).
 
 
 OSG PKI Command Line Clients

docs/security/host-certs/digicert.md

@@ -8,7 +8,6 @@ DigiCert IGTF Host Certificates
 
 !!! note
     This document describes how to get **host** certificates.
-    For instructions on how to get **user** certificates, see the [User Certificates document](../user-certs.md).
 
 This document describes how to purchase individual IGTF-accredited host certificates from [DigiCert](https://www.digicert.com/).
 Before purchasing individual certificates, consider the following alternatives:

docs/security/host-certs/overview.md

@@ -5,7 +5,6 @@ Host Certificates
 
 !!! note
     This document describes how to get **host** certificates.
-    For instructions on how to get **user** certificates, see the [User Certificates document](../user-certs.md).
 
 Host certificates are [X.509 certificates](https://en.wikipedia.org/wiki/X.509) that are used to securely identify
 servers and to establish encrypted connections between services and clients.