Revert "Build header-abi-dumper with clang-r339409b"

This reverts commit 547546bd7e9e0e8d7d4e8234fcafbeb901558f3a.

Reason for revert: Breaks Mac OS X build

Change-Id: I69d217f4ddbacff21cc6a2c89e41de9598579cc2
diff --git a/build-prebuilts.sh b/build-prebuilts.sh
index beff89d..f4dabf3 100755
--- a/build-prebuilts.sh
+++ b/build-prebuilts.sh
@@ -14,10 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-export LLVM_BUILD_HOST_TOOLS=true
-export LLVM_PREBUILTS_VERSION=clang-r339409b
-export LLVM_RELEASE_VERSION=8.0.2
-
 if [ -z "${OUT_DIR}" ]; then
     echo "error: Must set OUT_DIR"
     exit 1
@@ -73,33 +69,9 @@
 cp -R "${SOONG_HOST_OUT}/lib"* "${SOONG_OUT}/dist/"
 
 # Copy clang headers
-cp -R "prebuilts/clang/host/${OS}-x86/${LLVM_PREBUILTS_VERSION}/lib64/clang/${LLVM_RELEASE_VERSION}/include" "${SOONG_OUT}/dist/clang-headers"
-
-# Normalize library file names.  All library file names must match their soname.
-function extract_soname () {
-    local file="$1"
-
-    case "${OS}" in
-    linux)
-        readelf -d "${file}" | \
-            grep '(SONAME)\s*Library soname: \[.*\]$' -o | \
-            sed 's/(SONAME)\s*Library soname: \[\(.*\)\]$/\1/g'
-        ;;
-    darwin)
-        local install_path="$(otool -D "${file}" | sed -n 2p)"
-        if [ -n "${install_path}" ]; then
-            basename "${install_path}"
-        fi
-        ;;
-    esac
-}
-
-for file in "${SOONG_OUT}/dist/lib"*"/"*; do
-    soname="$(extract_soname "${file}")"
-    if [ -n "${soname}" -a "$(basename "${file}")" != "${soname}" ]; then
-        mv "${file}" "$(dirname "${file}")/${soname}"
-    fi
-done
+cp -R "external/clang/lib/Headers" "${SOONG_OUT}/dist/clang-headers"
+cp "prebuilts/clang/host/${OS}-x86/clang-3289846/lib64/clang/3.8/include/arm_neon.h" "${SOONG_OUT}/dist/clang-headers"
+rm "${SOONG_OUT}/dist/clang-headers/CMakeLists.txt"
 
 # Package binaries and shared libs
 (