Remove .i18nrc.json as OSD do not bundle it anymore (#5113)

Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: peterzhuamazon

scripts/pkg/build_templates/current/opensearch-dashboards/rpm/opensearch-dashboards.rpm.spec

@@ -123,7 +123,6 @@ exit 0
 %license %{product_dir}/LICENSE.txt
 %{product_dir}/package.json
 %{product_dir}/manifest.yml
-%{product_dir}/.i18nrc.json
 
 # Config dirs/files
 %dir %{config_dir}