Updating the closed issue

There was a reference to git hub issue mentioned in this document. Removed reference 
Link to github issue : microsoft/fhir-server#2344

Author: EXPEkesheth

articles/healthcare-apis/azure-api-for-fhir/overview-of-search.md

@@ -132,7 +132,7 @@ To help manage the returned resources, there are search result parameters that y
 | _revinclude                   | Yes                  | Yes                       |Included items are limited to 100. _revinclude on PaaS and OSS on Cosmos DB don't include :iterate support [(#2137)](https://github.com/microsoft/fhir-server/issues/2137).  There's also an incorrect status code for a bad request [#1319](https://github.com/microsoft/fhir-server/issues/1319)                            |
 | _summary                      | Yes             | Yes                   |
 | _total                        | Partial              | Partial                   | _total=none and _total=accurate                               |
-| _sort                         | Partial              | Partial                   | sort=_lastUpdated is supported on Azure API for FHIR and the FHIR service. For Azure API for FHIR and OSS Cosmos DB databases created after April 20, 2021, sort is supported on first name, last name, birthdate, and clinical date. Note there's an open issue using _sort with chained search, which is documented in open-source issue [#2344](https://github.com/microsoft/fhir-server/issues/2344).         |
+| _sort                         | Partial              | Partial                   | sort=_lastUpdated is supported on Azure API for FHIR and the FHIR service. For Azure API for FHIR and OSS Cosmos DB databases created after April 20, 2021, sort is supported on first name, last name, birthdate, and clinical date.       |
 | _contained                    | No                   | No                        |
 | _containedType                | No                   | No                        |
 | _score                        | No                   | No                        |