Revert "OSDOCS-16201: Documented migrating a br-ex interface to NMState"

Author: dfitzmau

installing/installing_bare_metal/bare-metal-postinstallation-configuration.adoc

@@ -36,16 +36,6 @@ include::modules/creating-manifest-file-customized-br-ex-bridge.adoc[leveloffset
 // Making disruptive changes to a customized br-ex bridge
 include::modules/making-disruptive-changes-br-ex-bridge.adoc[leveloffset=+1]
 
-// Migrating a configured br-ex bridge to NMState
-include::modules/migrating-br-ex-bridge-nmstate.adoc[leveloffset=+1]
-
-[role="_additional-resources"]
-.Additional resources
-
-* xref:../installing_bare_metal/ipi/ipi-install-installation-workflow.adoc#creating-manifest-file-customized-br-ex-bridge_ipi-install-installation-workflow[Installer-provisioned infrastructure: Creating a manifest object that includes a customized `br-ex` bridge]
-
-* xref:../../installing/installing_bare_metal/upi/installing-bare-metal.adoc#creating-manifest-file-customized-br-ex-bridge_installing-bare-metal[User-provisioned infrastructure: Creating a manifest object that includes a customized `br-ex` bridge]
-
 // Services for a user-managed load balancer
 include::modules/nw-osp-services-external-load-balancer.adoc[leveloffset=+1]
 

modules/creating-manifest-file-customized-br-ex-bridge.adoc

@@ -81,7 +81,7 @@ endif::postinstall-bare-metal[]
 .Procedure
 
 ifndef::postinstall-bare-metal[]
-. Create an NMState configuration file that has decoded base64 information for your customized `br-ex` bridge network:
+. Create a NMState configuration file that has decoded base64 information for your customized `br-ex` bridge network:
 +
 .Example of an NMState configuration for a customized `br-ex` bridge network
 [source,yaml]