PLT-1900 removing lang from preview and making spanish beta

web/react/utils/constants.jsx

@@ -456,10 +456,6 @@ export default {
         EMBED_PREVIEW: {
             label: 'embed_preview',
             description: 'Show preview snippet of links below message'
-        },
-        LOC_PREVIEW: {
-            label: 'loc_preview',
-            description: 'Show user language in display settings'
         }
     },
     OVERLAY_TIME_DELAY: 400,