zsh: remove incompatible antidote option

.config/zsh/plugins.zsh

@@ -88,13 +88,13 @@ if command -v antidote > /dev/null; then
         # Update plugins every 10 days
         if [[ $(( ${_now} - ${_plugins_modified} - 60 * 60 * 24 * 10)) -gt 0 ]]; then
             print "\e[3;95mUpdating plugins…\e[0m"
-            antidote update --parallelism=$(nproc --ignore=1) \
+            antidote update \
                 && touch "${ZSH_PLUGIN_SOURCE}"
         fi
     else
         print "\e[3;95mInstalling plugins…\e[0m"
         mkdir -p "${plugin_cache_dir}"
-        antidote bundle --parallelism=$(nproc --ignore=1) \
+        antidote bundle \
                  <<<$(print -l ${_my_plugins}) > "${ZSH_PLUGIN_SOURCE}"
     fi
 else