emacs-29 b6a2e1ddf6: * nt/INSTALL.W64: update instructions for setting up W64 environment

[Oscar Fuentes]

branch: emacs-29
commit b6a2e1ddf664513d04026f7b9d78e9c65f1a3e2e
Author: Óscar Fuentes <ofv@wanadoo.es>
Commit: Óscar Fuentes <ofv@wanadoo.es>

    * nt/INSTALL.W64: update instructions for setting up W64 environment
---
 nt/INSTALL.W64 | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/nt/INSTALL.W64 b/nt/INSTALL.W64
index 26420214b7..b1f5dabaaf 100644
--- a/nt/INSTALL.W64
+++ b/nt/INSTALL.W64
@@ -27,22 +27,16 @@ MinGW-w64 provides a complete runtime for projects built 
with GCC for 64-bit
 Windows -- it's located at https://mingw-w64.org/.
 
 MSYS2 is a Cygwin-derived software distribution for Windows which provides
-build tools for MinGW-w64 -- see https://msys2.github.io/.
+build tools for MinGW-w64 -- see https://msys2.org/.
 
 ** Download and install MinGW-w64 and MSYS2
 
-You can download the x86_64 version of MSYS2 (i.e. msys2-x86_64-<date>.exe)
-from
-
-  https://sourceforge.net/projects/msys2/files/Base/x86_64
-
-Run this file to install MSYS2 in your preferred directory, e.g. the default
-C:\msys64 -- this will install MinGW-w64 also.  Note that directory names
-containing spaces may cause problems.
+Go to https://msys2.org and follow the instructions. It is not
+necessary to install the packages suggested on those instructions.
 
 ** Download and install the necessary packages
 
-Run c:/msys64/msys2.exe in your MSYS2 directory and you will see a BASH window
+Run mingw64.exe in your MSYS2 directory and you will see a BASH window
 opened.
 
 In the BASH prompt, use the following command to install the necessary
@@ -122,10 +116,6 @@ put the Emacs source into C:\emacs\emacs-26:
 Now you're ready to build and install Emacs with autogen, configure, make,
 and make install.
 
-First we need to switch to the MinGW-w64 environment.  Exit the MSYS2 BASH
-console and run mingw64.exe in the C:\msys64 folder, then cd back to
-your Emacs source directory, e.g.:
-
   cd /c/emacs/emacs-26
 
 ** Run autogen