Auto merge of #103092 - petrochenkov:weaklto, r=wesleywiser

linker: Fix weak lang item linking with combination windows-gnu + LLD + LTO

In rust-lang/rust#100404 this logic was originally disabled for MSVC due to issues with LTO, but the same issues appear on windows-gnu with LLD because that LLD uses the same underlying logic as MSVC LLD, just with re-syntaxed command line options.

So this PR just disables it for LTO builds in general.

Author: bors