ci: remove -fuse-ld=lld (rust 1.90) (#10447)

Signed-off-by: Dori Medini <dori@starkware.co>

Author: dorimedini-starkware

.github/workflows/main.yml

@@ -17,8 +17,8 @@ on:
 
 env:
   CI: 1
-  RUSTFLAGS: "-D warnings -C link-arg=-fuse-ld=lld"
-  RUSTDOCFLAGS: "-D warnings -C link-arg=-fuse-ld=lld"
+  RUSTFLAGS: "-D warnings"
+  RUSTDOCFLAGS: "-D warnings"
   EXTRA_RUST_TOOLCHAINS: nightly-2024-04-29
 
 # On PR events, cancel existing CI runs on this same PR for this workflow.