Description: do not hardcode LLVM_DEFAULT_TARGET_TRIPLE,
  because then building gn with that version of clang fails on any
  architecture that's not x86-64.
  This partially reverts https://chromium.googlesource.com/chromium/src/+/2960c2b,
  which was meant to affect Mac only anyway.
Author: Olivier Tilloy <olivier.tilloy@canonical.com>
Forwarded: not-needed

--- a/tools/clang/scripts/build.py
+++ b/tools/clang/scripts/build.py
@@ -993,19 +993,6 @@ def main():
       cmake_args.append('-DLLVM_DEFAULT_TARGET_TRIPLE=arm64-apple-darwin')
     else:
       cmake_args.append('-DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-apple-darwin')
-  elif sys.platform.startswith('linux'):
-    if platform.machine() == 'aarch64':
-      cmake_args.append(
-          '-DLLVM_DEFAULT_TARGET_TRIPLE=aarch64-unknown-linux-gnu')
-    elif platform.machine() == 'riscv64':
-      cmake_args.append(
-          '-DLLVM_DEFAULT_TARGET_TRIPLE=riscv64-unknown-linux-gnu')
-    elif platform.machine() == 'loongarch64':
-      cmake_args.append(
-          '-DLLVM_DEFAULT_TARGET_TRIPLE=loongarch64-unknown-linux-gnu')
-    else:
-      cmake_args.append('-DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-unknown-linux-gnu')
-    cmake_args.append('-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON')
   elif sys.platform == 'win32':
     cmake_args.append('-DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-pc-windows-msvc')