OSDOCS-5405: revise install to remove local copy

Author: ShaunaDiaz

microshift_install/microshift-install-rpm.adoc

@@ -14,7 +14,6 @@ include::modules/microshift-install-system-requirements.adoc[leveloffset=+1]
 include::modules/microshift-install-rpm-preparing.adoc[leveloffset=+1]
 
 [role="_additional-resources"]
-[id="_additional-resources_microshift-install-rpm"]
 .Additional resources
 
 * Download the link:https://console.redhat.com/openshift/install/pull-secret[pull secret] from the Red Hat Hybrid Cloud Console.
@@ -44,4 +43,4 @@ include::modules/microshift-accessing-cluster-locally.adoc[leveloffset=+2]
 include::modules/microshift-accessing-cluster-remotely-admin.adoc[leveloffset=+2]
 include::modules/microshift-accessing-cluster-remotely-non-admin.adoc[leveloffset=+2]
 
-//all xrefs working on previews
+//note: additional resources are deliberately set without ID and context so that they trail modules; these are not intended to appear as assembly-level additional resources

modules/microshift-adding-repos-to-image-builder.adoc

@@ -23,56 +23,3 @@ $ sudo subscription-manager repos
     --enable rhocp-{ocp-version}-for-{rhel-major}-$(uname -i)-rpms
     --enable fast-datapath-for-{rhel-major}-$(uname -i)-rpms
 ----
-
-. Install the `reposync` and `createrepo` tools by running the following command:
-+
-[source,terminal]
-----
-$ sudo yum install -y yum-utils
-----
-
-. Sync the {product-title} RPM packages to your build host by running the following command:
-+
-[source,terminal,subs="attributes+"]
-----
-$ sudo reposync --arch=$(uname -i) --arch=noarch --gpgcheck \
-    --download-path REPO_PATH=/var/repos/microshift-local \
-    --repo=rhocp-{ocp-version}-for-{rhel-major}-$(uname -i)-rpms \
-    --repo=fast-datapath-for-{rhel-major}-$(uname -i)-rpms
-----
-
-. Remove `coreos` packages to avoid conflicts by running the following command:
-+
-[source,terminal]
-----
-$ sudo find ${REPO_PATH}/microshift-local -name \*coreos\* -exec rm -f {} \;
-----
-
-. Create a local RPM repository by running the following command:
-+
-[source,terminal]
-----
-$ sudo createrepo ${REPO_PATH}/microshift-local
-----
-
-. Create an Image Builder source file for this repository by running the following command:
-+
-[source,terminal]
-----
-$ sudo tee ${REPO_PATH}/microshift-local/microshift.toml > /dev/null <<EOF
-id = "microshift-local"
-name = "MicroShift local repo"
-type = "yum-baseurl"
-url = "file:///${REPO_PATH}/microshift-local/"
-check_gpg = false
-check_ssl = false
-system = false
-EOF
-----
-
-. Add this source file to Image Builder by running the following command:
-+
-[source,terminal]
-----
-$ sudo composer-cli sources add ${REPO_PATH}/microshift-local/microshift.toml
-----