CHEF-25794 - standardize - remove_sla_from_readme (#269)

* Remove SLA text from README.md

Signed-off-by: cgunasree08 <[email protected]>

* Remove remaining SLA references

Signed-off-by: cgunasree08 <[email protected]>

---------

Signed-off-by: cgunasree08 <[email protected]>

Author: cgunasree08

README.md

@@ -2,14 +2,6 @@
 
 [![Build Status](https://badge.buildkite.com/7051b7b35cc19076c35a6e6a9e996807b0c14475ca3f3acd86.svg?branch=main)](https://buildkite.com/chef-oss/chef-mixlib-shellout-master-verify) [![Gem Version](https://badge.fury.io/rb/mixlib-shellout.svg)](https://badge.fury.io/rb/mixlib-shellout)
 
-**Umbrella Project**: [Chef Foundation](https://github.com/chef/chef-oss-practices/blob/master/projects/chef-foundation.md)
-
-**Project State**: [Active](https://github.com/chef/chef-oss-practices/blob/master/repo-management/repo-states.md#active)
-
-**Issues [Response Time Maximum](https://github.com/chef/chef-oss-practices/blob/master/repo-management/repo-states.md)**: 14 days
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-**Pull Request [Response Time Maximum](https://github.com/chef/chef-oss-practices/blob/master/repo-management/repo-states.md)**: 14 days
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 Provides a simplified interface to shelling out while still collecting both standard out and standard error and providing full control over environment, working directory, uid, gid, etc.
 
 ## Example