test: remove DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX env for build

Author: filzrev

build/build.ps1

@@ -26,7 +26,6 @@ if ($PSVersionTable.PSEdition -ne 'Core') {
 
 $env:DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
 $env:DOTNET_CLI_TELEMETRY_OPTOUT=1
-$env:DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX=2
 
 Function Remove-PathVariable([string]$VariableToRemove)
 {

build/build.sh

@@ -10,7 +10,6 @@ PROJECT_ROOT=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && cd .. && pwd )
 export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
 export DOTNET_CLI_TELEMETRY_OPTOUT=1
 export DOTNET_SYSTEM_NET_HTTP_USESOCKETSHTTPHANDLER=0
-export DOTNET_ROLL_FORWARD_ON_NO_CANDIDATE_FX=2
 
 if [ ! -d "$PROJECT_ROOT/.dotnet" ]; then
     mkdir "$PROJECT_ROOT/.dotnet"