revert build script change

Author: Oren Novotny

build/default.ps1

@@ -21,10 +21,6 @@ Framework "4.6x86"
 
 task default -depends ?
 
-Task SetEnvironment {
-  Exec { & $env:VS140COMNTOOLS\vsvars32.bat }
-}
-
 task UpdateHeaders -description "Updates the headers in *.cs files" {
   $header = [System.IO.File]::ReadAllText("$buildDir\header.txt")
 
@@ -54,7 +50,7 @@ task Clean -description "Clean the output folder" {
   New-Item -Path $binDir -ItemType Directory | Out-Null
 }
 
-task Setup -Depends SetEnvironment -description "Setup environment" {
+task Setup -description "Setup environment" {
   WriteColoredOutput -ForegroundColor Green "Restoring NuGet packages...`n"
 
   Exec { .$nuget restore $packagesConfig "$sourceDir\UWP Community Toolkit.sln" } "Error pre-installing NuGet packages"