Revert "R: fix build on darwin"

The ld64 issue has been fixed.

This reverts commit f03ea24eb1.

pkgs/applications/science/math/R/default.nix

@@ -27,7 +27,6 @@
   pkg-config,
   bison,
   which,
-  llvmPackages,
   jdk,
   blas,
   lapack,
@@ -69,10 +68,7 @@ stdenv.mkDerivation (finalAttrs: {
     pkg-config
     tzdata
     which
-  ]
-  # TODO: Remove once #536365 reaches this branch
-  ++ lib.optional stdenv.hostPlatform.isDarwin llvmPackages.lld;
-
+  ];
   buildInputs = [
     bzip2
     gfortran
@@ -130,11 +126,6 @@ stdenv.mkDerivation (finalAttrs: {
 
   dontDisableStatic = static;
 
-  env = lib.optionalAttrs stdenv.hostPlatform.isDarwin {
-    # TODO: Remove once #536365 reaches this branch
-    NIX_CFLAGS_LINK = "-fuse-ld=lld";
-  };
-
   preConfigure = ''
     configureFlagsArray=(
       --disable-lto