Remove redundant author link from article summary

layouts/_default/summary.html

@@ -2,7 +2,7 @@
     <header>
         <h2 class="p-name u-url"><a href='{{ .Permalink }}'>{{ .Title }}</a> </h2>
         <p>
-            Published by <a class="p-author h-card" href="{{ .Site.BaseURL }}">{{ .Site.Params.Card.Author }}</a> on
+            Published on
             <time class="dt-published" datetime="{{ .Date }}">{{ .Date.Format "January 2, 2006" }}</time>
             &ndash; {{ .FuzzyWordCount }} Words
         </p>