drop rapidjson headers from packages and use rapidjson from the system

scripts/function.sh

@@ -2226,42 +2226,6 @@ download_gnu_config() {
   fi
 }
 
-download_rapidjson() {
-  local SOURCE_REPO_URL=""
-  local LIB_NAME="rapidjson"
-  local LIB_LOCAL_PATH="${FFMPEG_KIT_TMPDIR}/source/${LIB_NAME}"
-  local SOURCE_ID=""
-  local DOWNLOAD_RC=""
-  local SOURCE_TYPE=""
-  REDOWNLOAD_VARIABLE=$(echo "REDOWNLOAD_$LIB_NAME")
-
-  echo -e "DEBUG: Downloading rapidjson source.\n" 1>>"${BASEDIR}"/build.log 2>&1
-
-  SOURCE_REPO_URL=$(get_library_source "${LIB_NAME}" 1)
-  SOURCE_ID=$(get_library_source "${LIB_NAME}" 2)
-  SOURCE_TYPE=$(get_library_source "${LIB_NAME}" 3)
-
-  if [[ -d "${LIB_LOCAL_PATH}" ]]; then
-    if [[ ${REDOWNLOAD_VARIABLE} -eq 1 ]]; then
-      echo -e "INFO: rapidjson already downloaded but re-download requested\n" 1>>"${BASEDIR}"/build.log 2>&1
-      rm -rf "${LIB_LOCAL_PATH}" 1>>"${BASEDIR}"/build.log 2>&1
-    else
-      echo -e "INFO: rapidjson already downloaded. Source folder found at ${LIB_LOCAL_PATH}\n" 1>>"${BASEDIR}"/build.log 2>&1
-      return
-    fi
-  fi
-
-  DOWNLOAD_RC=$(clone_git_repository_with_tag "${SOURCE_REPO_URL}" "${SOURCE_ID}" "${LIB_LOCAL_PATH}")
-
-  if [[ ${DOWNLOAD_RC} -ne 0 ]]; then
-    echo -e "INFO: Downloading rapidjson failed. Can not get source from ${SOURCE_REPO_URL}\n" 1>>"${BASEDIR}"/build.log 2>&1
-    echo -e "failed\n"
-    exit 1
-  else
-    echo -e "\nINFO: rapidjson downloaded successfully\n" 1>>"${BASEDIR}"/build.log 2>&1
-  fi
-}
-
 is_gnu_config_files_up_to_date() {
   echo $(grep aarch64-apple-darwin config.guess | wc -l 2>>"${BASEDIR}"/build.log)
 }