Use default tippy theme

Author: eweitz

src/js/kit/pathway-viewer.js

@@ -1,7 +1,6 @@
 import snarkdown from 'snarkdown';
 import tippy from 'tippy.js';
 import {getTippyConfig} from '../lib';
-import { tippyLightCss } from './tippy-styles';
 
 const PVJS_URL = 'https://cdn.jsdelivr.net/npm/@wikipathways/[email protected]/dist/pvjs.vanilla.js';
 const SVGPANZOOM_URL = 'https://cdn.jsdelivr.net/npm/[email protected]/dist/svg-pan-zoom.min.js';
@@ -402,12 +401,6 @@ export async function drawPathway(
   const ideogramPathwayEvent = new CustomEvent('ideogramDrawPathway', {detail});
   document.dispatchEvent(ideogramPathwayEvent);
 
-  const css =
-    `<style>
-      ${tippyLightCss}
-    </style>`;
-  pvjsContainer.insertAdjacentHTML('afterBegin', css);
-
   pathwayContainer.querySelectorAll('g.GeneProduct').forEach(g => {
     const geneName = g.getAttribute('name');
     let tooltipContent = geneName;