Remove unused lines in build_android_library.sh

Author: kirklandsign

scripts/build_android_library.sh

@@ -65,11 +65,6 @@ build_android_native_library() {
   fi
   cmake --build "${CMAKE_OUT}" -j "${CMAKE_JOBS}" --target install --config "${EXECUTORCH_CMAKE_BUILD_TYPE}"
 
-  # Update tokenizers submodule
-  pushd extension/llm/tokenizers
-  echo "Update tokenizers submodule"
-  git submodule update --init
-  popd
   cmake extension/android \
     -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK}/build/cmake/android.toolchain.cmake \
     -DANDROID_ABI="${ANDROID_ABI}" \