Cleanup AIAB reference. (#27)

* CLeanup AIAB reference & gNBSim document cleanup .

* Update developer/gnbsim.rst

Co-authored-by: gab-arrobo <[email protected]>

* Update developer/aiab5g.rst

Co-authored-by: gab-arrobo <[email protected]>

* Update developer/aiab5g.rst

---------

Co-authored-by: gab-arrobo <[email protected]>

Author: thakurajayL

_static/images/Separate-cluster_2_interface.jpg

@@ -7,23 +7,9 @@
 Aether In a Box - 5G
 ====================
 
-The documentation for Aether In a Box (AiaB) - 5G is located in `Aether OnRamp <https://docs.aetherproject.org/master/onramp/overview.html>`_,
-where specifics about setting up Aether 5G, running 5G test, troubleshooting,
-and other details are described.
+Previously developers used Aether in a Box (AiaB) environment to test SD-Core. But AiaB is
+now deprecated and Aether OnRamp is suggested way for developers to install Aether.
 
-Developer Loop
-______________
-
-Suppose you wish to test a new build of a 5G SD-CORE services. You can deploy
-custom images by editing ~/aether-in-a-box/sd-core-5g-values.yaml, for
-example::
-
-    images:
-      tags:
-        webui: omecproject/5gc-webui:rel-1.4.0
-
-To upgrade a running 5G SD-CORE with the new image, or to redeploy the 5G
-SD-CORE with the image::
-
-    make reset-5g-test # delete 5G deployment if it was already started before updating image
-    make 5g-core  # now this deployment will use new webui image
+The documentation for deploying SD-Core (Private 5G) solution on a Kubernetes cluster is
+located in `Aether OnRamp <https://docs.aetherproject.org/master/onramp/overview.html>`_,
+where specifics about setting up Aether 5G, running 5G test, troubleshooting, and other details are described.