Remove dead 32-bit code.

src/Generator.Tests/GeneratorTest.cs

@@ -35,8 +35,7 @@ namespace CppSharp.Utils
                 testModule.LibraryName, options.GeneratorKind.ToString());
 
             if (Platform.IsMacOS)
-                driver.ParserOptions.TargetTriple = Environment.Is64BitProcess ?
-                    "x86_64-apple-darwin" : "i686-apple-darwin";
+                driver.ParserOptions.TargetTriple = "x86_64-apple-darwin";
 
             var path = Path.GetFullPath(GetTestsDirectory(name));
             testModule.IncludeDirs.Add(path);
@@ -47,11 +46,11 @@ namespace CppSharp.Utils
             var files = Directory.EnumerateFiles(path, "*.h", SearchOption.AllDirectories);
             foreach (var file in files)
             {
-                string includeDir = Path.GetDirectoryName(file);
+                var includeDir = Path.GetDirectoryName(file);
+
                 if (!testModule.IncludeDirs.Contains(includeDir))
-                {
                     testModule.IncludeDirs.Add(includeDir);
-                }
+
                 testModule.Headers.Add(Path.GetFileName(file));
             }
         }