_content/doc/tutorial: improve documentation on installing govulncheck

govulncheck's go.mod now requires the use of Go version that is at least
one less than the current latest Go release. Remove the old restriction
as that is now incorrect and confusing. Just tell people to use the
latest Go version.

Updates golang/go#68034

Change-Id: I97a59d4764592496918b44c10345a2fadb92aac8
Reviewed-on: https://go-review.googlesource.com/c/website/+/614235
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Cottrell <iancottrell@google.com>

_content/doc/tutorial/govulncheck-ide.md

@@ -11,7 +11,7 @@ Note: for an explanation of the vulnerability fix included in the images below,
 
 ## Prerequisites:
 
-- **Go 1.18 or later.** Govulncheck is designed to work with Go 1.18 onwards. For installation instructions, see [Installing Go](/doc/install). We recommend using the latest version of Go to follow this tutorial.
+- **Go.** We recommend using the latest version of Go to follow this tutorial. For installation instructions, see [Installing Go](/doc/install).
 - **VS Code**, updated to the latest version. [Download here](https://code.visualstudio.com/). You can also use Vim (see [here](/security/vuln/editor#editor-specific-instructions) for details), but this tutorial focuses on VS Code Go.
 - **VS Code Go extension**, which can be [downloaded here](https://marketplace.visualstudio.com/items?itemName=golang.go).
 - **Editor-specific settings changes.** You will need to modify your IDE settings according to [these specifications](/security/vuln/editor#editor-specific-instructions) before being able to replicate the results below.

_content/doc/tutorial/govulncheck.md

@@ -21,9 +21,8 @@ We'd also love to [hear your feedback](/s/govulncheck-feedback).
 
 ## Prerequisites
 
-- **Go 1.18 or later.** Govulncheck is designed to work with Go 1.18 onwards.
+- **Go.** We recommend using the latest version of Go to follow this tutorial.
   (For installation instructions, see [Installing Go](/doc/install).)
-  We recommend using the latest version of Go to follow this tutorial.
 - **A code editor.** Any editor you have will work fine.
 - **A command terminal.** Go works well using any terminal on Linux and Mac, and on PowerShell or cmd in Windows.