[clang] [clang-tools-extra] [libcxx] Reland "[clang] Enable sized deallocation by default in C++14 onwards" (PR #90373)

[Vassil Vassilev via cfe-commits]

vgvassilev wrote:

It seems we have troubles with exporting the right symbols on windows. I am cc-ing @compnerd and @fsfod for more expertise.

https://github.com/llvm/llvm-project/pull/90373