Removed Contained InnerSource

Removed Contained InnerSource (PR was closed and a different pattern was written in its place)

Author: NewMexicoKid

README.md

@@ -46,7 +46,6 @@ The below lists all known patterns. They are grouped into four stages of maturit
 #### Pattern Drafts (proven, not yet fully reviewed)
 
 * [Reluctance to Receive Contributions](https://docs.google.com/document/d/13QDN-BpE_BixRFVGjao32n4Ctim0ROXAHbBWMBOijb4/edit) - *Core owner of shared asset is reluctant to take contributions due to the required maintenance that comes with them.*
-* [Contained Inner Source](https://github.com/paypal/InnerSourcePatterns/pull/13)
 * [What Before How or Services Documentation](https://docs.google.com/document/d/1_N1wsQeDusfIcNy-O2ZXenY3PL7ZbvkUDRZxGUuegZw/edit?usp=drive_web) - *A lack of common understanding between different management tiers creates funding barriers and increases the risk that solutions will not deliver required business outcomes.*
 * [Overcome Acquisition Based Silos - Developers](https://github.com/paypal/InnerSourceCommons/wiki/Overcome-Acquisition-based-Silos)
 * [Overcome Acquisition Based Silos - Managers](https://github.com/paypal/InnerSourceCommons/wiki/Overcome-Acquisition-based-Silos)