[bazel] Remove bazel cache from airgapped

Signed-off-by: Douglas Reis <doreis@lowrisc.org>

Author: engdoreis

ci/scripts/test-airgapped-build.sh

@@ -31,8 +31,7 @@ sudo ip netns exec airgapped sudo -u "$USER" \
     BAZEL_BITSTREAMS_CACHE="${PWD}/bazel-airgapped/bitstreams-cache" \
     OT_AIRGAPPED="true"                                              \
     BITSTREAM="--offline latest"                                     \
-  "${PWD}/bazel-airgapped/bazel" build                               \
-    --distdir="${PWD}/bazel-airgapped/bazel-distdir"                 \
+   "${PWD}/bazel-airgapped/bazel" build                              \
     --vendor_dir="${PWD}/bazel-airgapped/bazel-vendor"               \
     --define DISABLE_VERILATOR_BUILD=true                            \
     //sw/device/silicon_creator/rom:mask_rom

util/prep-bazel-airgapped-build.sh

@@ -116,16 +116,6 @@ if [[ ${AIRGAPPED_DIR_CONTENTS} == "ALL" || \
     --output bazel
   chmod +x bazel
   popd
-
-  # Make Bazel fetch its own dependencies to the repository cache:
-  # https://bazel.build/run/build#repository_cache_with_bazel_7_or_later
-  mkdir -p "${BAZEL_AIRGAPPED_DIR}/empty_workspace"
-  pushd "${BAZEL_AIRGAPPED_DIR}/empty_workspace"
-    touch MODULE.bazel
-    cp "${REPO_TOP}/.bazelversion" .
-    ../bazel fetch --repository_cache="${BAZEL_CACHEDIR}"
-  popd
-  rm -rf "${BAZEL_AIRGAPPED_DIR}/empty_workspace"
 fi
 
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