perf: remove unused showdown

Silentdoer · PanJiaChen · web-flow · commit 7702b3d809a3 · 2020-06-11T20:24:17.000+08:00
Co-authored-by: 花裤衩 &lt;panfree23@gmail.com&gt;
diff --git a/package.json b/package.json
@@ -60,7 +60,6 @@
     "path-to-regexp": "2.4.0",
     "screenfull": "4.2.0",
     "script-loader": "0.7.2",
-    "showdown": "1.9.0",
     "sortablejs": "1.8.4",
     "tui-editor": "1.3.3",
     "vue": "2.6.10",
