guix: drop binutils from macOS env

Author: fanquake

contrib/guix/manifest.scm

@@ -532,7 +532,6 @@ inspecting signatures in Mach-O binaries.")
           ((string-contains target "darwin")
            (list ;; Native GCC 11 toolchain
                  gcc-toolchain-11
-                 binutils
                  clang-toolchain-17
                  lld-17
                  (make-lld-wrapper lld-17 #:lld-as-ld? #t)