Unbreak build by removing bindgen temporarily

Bindgen has been updated in platform, but additional repos need to be
mapped into this build to work properly. Since changing manifests
requires special permissions, this unbreaks the build until we can get
the manifest fixed to re-add bindgen.

Test: TH
Change-Id: Idd7bf289212a2570e267eaab0e94d332ed8a44b2

vndk/tools/header-checker/android/build-prebuilts.sh

@@ -64,7 +64,6 @@ Darwin)
 esac
 
 LINUX_SOONG_BINARIES=(
-    "bindgen"
     "cxx_extractor"
     "header-abi-linker"
     "header-abi-dumper"