Remove check for stdout redirection

Author: mbg

csharp/autobuilder/Semmle.Autobuild.Shared/BuildActions.cs

@@ -199,12 +199,8 @@ private static ProcessStartInfo GetProcessStartInfo(string exe, string arguments
             if (workingDirectory is not null)
                 pi.WorkingDirectory = workingDirectory;
 
-            // Environment variables can only be used when not redirecting stdout
-            if (!redirectStandardOutput)
-            {
-                if (environment is not null)
-                    environment.ForEach(kvp => pi.Environment[kvp.Key] = kvp.Value);
-            }
+            environment?.ForEach(kvp => pi.Environment[kvp.Key] = kvp.Value);
+
             return pi;
         }