Revert "ci(cache): disable LLVM tools on Windows to cut link-bound wall-clock"

This reverts commit 3106d1e.

Author: nebasuke

.github/actions/build-llvm/action.yml

@@ -173,28 +173,9 @@ runs:
           LINK_JOBS=1
         fi
 
-        # Windows disables LLVM's own tool binaries (opt, llc, llvm-objdump, ...)
-        # because `lld-link` is slow per-executable and those ~200 tool links
-        # dominate Windows wall-clock even at 100% ccache hits on compiles. solx
-        # consumes LLVM via inkwell FFI and never invokes a tool from
-        # target-llvm/target-final/bin/; distro/Xcode packages provide
-        # llvm-cov / llvm-symbolizer / etc. Scoped Windows-only so non-Windows
-        # runs stay identical pending independent validation on those platforms.
-        EXTRA_ARGS=(
-          "-DCMAKE_EXPORT_COMPILE_COMMANDS='Off'"
-          "-DLLVM_PARALLEL_LINK_JOBS='${LINK_JOBS}'"
-          "-DLLVM_OPTIMIZED_TABLEGEN='On'"
-        )
-        if [ "${{ runner.os }}" = "Windows" ]; then
-          EXTRA_ARGS+=(
-            "-DLLVM_BUILD_TOOLS='Off'"
-            "-DLLVM_INCLUDE_TOOLS='Off'"
-          )
-        fi
-
         ./target/release/solx-dev llvm build --build-type ${{ inputs.build-type }} \
           --ccache-variant=ccache ${ENABLE_TESTS} ${ENABLE_VALGRIND} ${VALGRIND_OPTIONS} ${ENABLE_ASSERTIONS} ${ENABLE_COVERAGE} ${ENABLE_MLIR} ${SANITIZER} \
-          --extra-args "${EXTRA_ARGS[@]}"
+          --extra-args "-DCMAKE_EXPORT_COMPILE_COMMANDS='Off'" "-DLLVM_PARALLEL_LINK_JOBS='${LINK_JOBS}'" "-DLLVM_OPTIMIZED_TABLEGEN='On'"
 
     # `continue-on-error` keeps a failing ccache install (→ ccache not on PATH)
     # from masking the real Build LLVM failure in the step summary.