Removing duplicate custom-jekyll js

After docsy theme got merged these scripts aren't needed anymore.  Confirmed
after removing it (and all `<script>` references to it) the tooltip
functionality is still there.
Also removed the reference in `config.toml` to it, which may have stripped some
dangling whitespace.

config.toml

@@ -153,7 +153,6 @@ css = [
   "custom-jekyll/tags"
 ]
 js = [
-  "custom-jekyll/tags",
   "script"
 ]
 
@@ -222,7 +221,7 @@ no = 'Sorry to hear that. Please <a href="https://github.com/USERNAME/REPOSITORY
 	url = "https://discuss.kubernetes.io"
 	icon = "fa fa-envelope"
   desc = "Discussion and help from your fellow users"
-  
+
 [[params.links.user]]
 	name = "Twitter"
 	url = "https://twitter.com/kubernetesio"
@@ -259,7 +258,7 @@ no = 'Sorry to hear that. Please <a href="https://github.com/USERNAME/REPOSITORY
 	url = "https://git.k8s.io/community/contributors/guide"
 	icon = "fas fa-edit"
   desc = "Contribute to the Kubernetes website"
-  
+
 [[params.links.developer]]
 	name = "Stack Overflow"
 	url = "https://stackoverflow.com/questions/tagged/kubernetes"