clang-pseudo was removed in llvm/llvm-project#109154

Author: mhegazy

utils/build.ps1

@@ -1720,7 +1720,7 @@ function Build-BuildTools([Hashtable] $Platform) {
     -Bin (Get-ProjectBinaryCache $Platform BuildTools) `
     -Platform $Platform `
     -UseMSVCCompilers C,CXX `
-    -BuildTargets llvm-tblgen,clang-tblgen,clang-pseudo-gen,clang-tidy-confusable-chars-gen,lldb-tblgen,llvm-config,swift-def-to-strings-converter,swift-serialize-diagnostics,swift-compatibility-symbols `
+    -BuildTargets llvm-tblgen,clang-tblgen,clang-tidy-confusable-chars-gen,lldb-tblgen,llvm-config,swift-def-to-strings-converter,swift-serialize-diagnostics,swift-compatibility-symbols `
     -Defines @{
       CMAKE_CROSSCOMPILING = "NO";
       CLANG_ENABLE_LIBXML2 = "NO";

utils/swift_build_support/swift_build_support/products/llvm.py

@@ -443,8 +443,6 @@ def build(self, host_target):
                                                 'clang-tidy-confusable-chars-gen')
             llvm_cmake_options.define('CLANG_TIDY_CONFUSABLE_CHARS_GEN',
                                       confusable_chars_gen)
-            pseudo_gen = os.path.join(host_build_dir, 'bin', 'clang-pseudo-gen')
-            llvm_cmake_options.define('CLANG_PSEUDO_GEN', pseudo_gen)
             llvm = os.path.join(host_build_dir, 'llvm')
             llvm_cmake_options.define('LLVM_NATIVE_BUILD', llvm)