Revert "Pinning the SDK version to: "2.0.0-preview3-006628""

This reverts commit 0dd17b6.

Author: William Li

run-build.ps1

@@ -80,8 +80,8 @@ $env:VSTEST_TRACE_BUILD=1
 # install a stage0
 $dotnetInstallPath = Join-Path $RepoRoot "scripts\obtain\dotnet-install.ps1"
 
-Write-Output "$dotnetInstallPath -Channel ""release/2.0.0"" -InstallDir $env:DOTNET_INSTALL_DIR -Architecture ""$Architecture"" -Version 2.0.0-preview3-006628"
-Invoke-Expression "$dotnetInstallPath -Channel ""release/2.0.0"" -InstallDir $env:DOTNET_INSTALL_DIR -Architecture ""$Architecture"" -Version 2.0.0-preview3-006628"
+Write-Output "$dotnetInstallPath -Channel ""release/2.0.0"" -InstallDir $env:DOTNET_INSTALL_DIR -Architecture ""$Architecture"""
+Invoke-Expression "$dotnetInstallPath -Channel ""release/2.0.0"" -InstallDir $env:DOTNET_INSTALL_DIR -Architecture ""$Architecture"""
 if ($LastExitCode -ne 0)
 {
     Write-Output "The .NET CLI installation failed with exit code $LastExitCode"

run-build.sh

@@ -155,7 +155,7 @@ export VSTEST_TRACE_BUILD=1
 export DOTNET_MULTILEVEL_LOOKUP=0
 
 # Install a stage 0
-(set -x ; "$REPOROOT/scripts/obtain/dotnet-install.sh" --channel "release/2.0.0" --install-dir "$DOTNET_INSTALL_DIR" --architecture "$ARCHITECTURE" --version "2.0.0-preview3-006628" $LINUX_PORTABLE_INSTALL_ARGS)
+(set -x ; "$REPOROOT/scripts/obtain/dotnet-install.sh" --channel "release/2.0.0" --install-dir "$DOTNET_INSTALL_DIR" --architecture "$ARCHITECTURE" $LINUX_PORTABLE_INSTALL_ARGS)
 
 EXIT_CODE=$?
 if [ $EXIT_CODE != 0 ]; then