Remove redundant onclick handlers

Author: Simran-B

site/themes/arangodb-docs-theme/layouts/_default/_markup/render-heading.html

@@ -4,5 +4,5 @@
   {{- errorf "Found illegal level 1 Header in '%v' -> '%v'" .Page.RelPermalink .Text }}
   {{- $level := 2 }}
 {{- end }}
-<h{{ $level }} id="{{ .Anchor | safeURL }}">{{ .Text | safeHTML }} <a href="{{ $ref | safeURL }}" class="header-link" onclick="copyURI(event)"><span></span><i class="fa fa-link"></i></a></h{{ $level }}>
+<h{{ $level }} id="{{ .Anchor | safeURL }}">{{ .Text | safeHTML }} <a href="{{ $ref | safeURL }}" class="header-link"><span></span><i class="fa fa-link"></i></a></h{{ $level }}>
 {{- .Page.Scratch.Set "currentHeadline" .Text }}

site/themes/arangodb-docs-theme/layouts/partials/back-to-top.html

@@ -1 +1 @@
-<button class="back-to-top hidden" onclick="goToTop(event)" href="#"><i class="fa fa-arrow-up"></i></button>
+<button class="back-to-top hidden" href="#"><i class="fa fa-arrow-up"></i></button>

site/themes/arangodb-docs-theme/layouts/partials/header.html

@@ -23,9 +23,8 @@
     <div class="container-right" style="display: hidden;">
     </div>
     <div class="search-and-version-container" >
-      <a href="#" class="home-link is-current" aria-label="Go to home page" onclick="goToHomepage(event);"></a>
-      <div class="docsearch">
-      </div>
+      <a href="#" class="home-link is-current" aria-label="Go to home page"></a>
+      <div class="docsearch"></div>
       {{ partialCached "inkeep-widget.html" . -}}
       {{/* partialCached "version-selector.html" . */}}
     </div>

site/themes/arangodb-docs-theme/layouts/partials/shortcodes/tabs.html

@@ -8,7 +8,7 @@
     {{ range $idx, $tab := $tabs -}}
       {{ if ne .name "" -}}
         <button data-tab-group="{{ $groupid }}" data-tab-item="{{ .name }}" class="tab-nav-button
-          {{- cond (eq $idx 0) " selected" ""}}" onclick="switchTab('{{ $groupid }}','{{ .name }}',event)">
+          {{- cond (eq $idx 0) " selected" ""}}">
           <span>{{ .name | markdownify }}</span>
         </button>
       {{- end -}}