removed visualization phrase from ogc submodule note
"source": [
"#### [`arcgis.mapping`](https://developers.arcgis.com/python/api-reference/arcgis.mapping.html#webmap)\n",
"* New [`arcgis.mapping.ogc`](https://developers.arcgis.com/python/api-reference/arcgis.mapping.ogc.html#) submodule\n",
- "to support visualization of `OGC Layers`:\n",
+ "to support `OGC Layers`:\n",
" * [`CSVLayer`](https://developers.arcgis.com/python/api-reference/arcgis.mapping.ogc.html#csvlayer)\n",
" * [`GeoJSONLayer`](https://developers.arcgis.com/python/api-reference/arcgis.mapping.ogc.html#geojsonlayer)\n",
" * [`GeoRSSLayer`](https://developers.arcgis.com/python/api-reference/arcgis.mapping.ogc.html#georsslayer)\n",
