CI: unset NO_DOWNLOAD_CI_LLVM for 2 windows jobs

Author: marcoieni

src/ci/github-actions/jobs.yml

@@ -484,9 +484,6 @@ auto:
       RUST_CONFIGURE_ARGS: >-
         --build=i686-pc-windows-gnu
         --enable-full-tools
-      # We are intentionally allowing an old toolchain on this builder (and that's
-      # incompatible with LLVM downloads today).
-      NO_DOWNLOAD_CI_LLVM: 1
       SCRIPT: python x.py dist bootstrap --include-default-paths
       DIST_REQUIRE_ALL_TOOLS: 1
       CODEGEN_BACKENDS: llvm,cranelift
@@ -498,9 +495,6 @@ auto:
       RUST_CONFIGURE_ARGS: >-
         --build=x86_64-pc-windows-gnu
         --enable-full-tools
-      # We are intentionally allowing an old toolchain on this builder (and that's
-      # incompatible with LLVM downloads today).
-      NO_DOWNLOAD_CI_LLVM: 1
       DIST_REQUIRE_ALL_TOOLS: 1
       CODEGEN_BACKENDS: llvm,cranelift
     <<: *job-windows