[Docs] Update on the Windows install procedures (espressif#6018)

Author: pedrominatel

Diff for: docs/source/installing.rst

@@ -29,7 +29,7 @@ This is the preferred and easiest way to install Arduino-ESP32.
 
 .. note::
    Starting with the Arduino IDE version 1.6.4, Arduino allows installation of third-party platform 
-   packages using Boards Manager. We have packages available for Windows, macOS, and Linux (x86, amd64, armhf and arm64).
+   packages using Boards Manager. We have packages available for Windows, macOS, and Linux.
 
 To start the installation process using the Boards Managaer, follow these steps:
 
@@ -63,9 +63,6 @@ Windows
 
 Steps to install Arduino ESP32 support on Windows:
 
-.. note::
-   Tested on Windows 10 32 and 64 bit machines.
-
 **Step 1**
 
 1. Download and install the latest Arduino IDE ``Windows Installer`` from [arduino.cc](https://www.arduino.cc/en/Main/Software)