[clang] [clang-tools-extra] [llvm] Removal of 20,000+ lines of trailing whitespace (PR #182689)

[Joseph Huber via llvm-commits]

jhuber6 wrote:

We really need some guidelines against these "whole-project" PRs. The last I remember was https://github.com/llvm/llvm-project/pull/156270 and it's always a massive drain on already thin reviewer resources to pull in 50+ maintainers into a single NFC PR.

https://github.com/llvm/llvm-project/pull/182689