Clarify MySQL and PostgreSQL connector OOB driver

Author: linda33wj

articles/data-factory/connector-mysql.md

@@ -12,7 +12,7 @@ ms.workload: data-services
 
 
 ms.topic: conceptual
-ms.date: 09/04/2019
+ms.date: 02/19/2020
 ms.author: jingwang
 
 ---
@@ -43,8 +43,6 @@ Specifically, this MySQL connector supports MySQL **version 5.6 and 5.7**.
 
 The Integration Runtime provides a built-in MySQL driver starting from version 3.7, therefore you don't need to manually install any driver.
 
-For Self-hosted IR version lower than 3.7, you need to install the [MySQL Connector/Net for Microsoft Windows](https://dev.mysql.com/downloads/connector/net/) version between 6.6.5 and 6.10.7 on the Integration Runtime machine. This 32-bit driver is compatible with 64-bit IR.
-
 ## Getting started
 
 [!INCLUDE [data-factory-v2-connector-get-started](../../includes/data-factory-v2-connector-get-started.md)]

articles/data-factory/connector-postgresql.md

@@ -12,7 +12,7 @@ ms.workload: data-services
 
 
 ms.topic: conceptual
-ms.date: 09/04/2019
+ms.date: 02/19/2020
 ms.author: jingwang
 
 ---
@@ -38,7 +38,7 @@ Specifically, this PostgreSQL connector supports PostgreSQL **version 7.4 and ab
 
 [!INCLUDE [data-factory-v2-integration-runtime-requirements](../../includes/data-factory-v2-integration-runtime-requirements.md)]
 
-For Self-hosted IR version lower than 3.7, you need to install the [Ngpsql data provider for PostgreSQL](https://go.microsoft.com/fwlink/?linkid=282716) with version between 2.0.12 and 3.1.9 on the Integration Runtime machine.
+The Integration Runtime provides a built-in PostgreSQL driver starting from version 3.7, therefore you don't need to manually install any driver.
 
 ## Getting started