Removes migration content (to be added back in iteration 2) (#80)

Author: sarahsimpers

source/getting-started.txt

@@ -11,13 +11,11 @@ Use the following resources to get started with the
 {+atlas-arch-center+}:
 
 - :ref:`Landing Zone Design <arch-center-landing-zone>`
-- :ref:`Migration <arch-center-migration>`
 - :ref:`{+service+} Organizations, Projects, and {+Clusters+}
   <arch-center-hierarchy>`
 
 .. toctree::
    :titlesonly:
 
    Landing Zone Design </landing-zone>
-   Migration </migration>
    Orgs, Projects, and Clusters </hierarchy>

source/index.txt

@@ -46,8 +46,6 @@ Explore the following getting started resources or use the left navigation to fi
 
 - :ref:`Landing Zone Design <arch-center-landing-zone>`: Learn how to
   define a landing zone for your organization.
-- :ref:`Migration <arch-center-migration>`: Make a plan to move your
-  existing data into {+service+}.
 - :ref:`Orgs, Projects, and Deployments <arch-center-hierarchy>`:
   Set up the foundational {+service+} components.
 

source/landing-zone.txt

@@ -267,6 +267,5 @@ organization, see the previous section on
 Next Steps
 ----------
 
-See the :ref:`arch-center-migration` page to plan your migration
-to {+service+} or use the left
+See the :ref:`arch-center-hierarchy` page to learn about the building blocks of your {+service+} enterprise estate or use the left
 navigation to find features and best practices for each {+waf+} pillar.