Merge pull request #648 from dotnet/removepreview

delete deprecated preview install script

Author: leecow

CODEOWNERS

@@ -5,7 +5,4 @@
 # the repo. Unless a later match takes precedence,
 # @dotnet/install-scripts-maintainers will be requested
 # for review when someone opens a pull request.
-* @dotnet/install-scripts-maintainers
-
-# The preview script is not owned by the maintainers of this repo
-/src/install-dotnet-preview.sh @dotnet/dotnet-install-preview-contributors
+* @dotnet/install-scripts-maintainers

docs/README.md

@@ -1,6 +1,6 @@
 [![Build Status](https://dev.azure.com/dnceng-public/public/_apis/build/status/73?branchName=main&label=Public)](https://dev.azure.com/dnceng-public/public/_build?definitionId=73)
 
-This repo is the central place for dotnet install and install dotnet preview scripts.
+This repo is the central place for the dotnet install.
 
 **Please be advised that the project is currently in maintenance mode. This implies that we are focusing on addressing high-priority bugs and providing assistance with any issues that may arise. During this phase, no new features or significant improvements are anticipated.**
 
@@ -10,9 +10,3 @@ https://learn.microsoft.com/dotnet/core/tools/dotnet-install-script
 To download the latest stable versions of dotnet install, go to:
 - Bash (Linux/macOS): https://dot.net/v1/dotnet-install.sh 
 - PowerShell (Windows): https://dot.net/v1/dotnet-install.ps1
-
-Information about the usage of install dotnet preview is provided here:
-https://github.com/dotnet/core/blob/main/release-notes/7.0/install-linux.md#install-using-debrpm-packages
-
-The latest stable versions of install dotnet preview is available here:
--  https://builds.dotnet.microsoft.com/dotnet/release/install-preview/install-dotnet-preview.sh