internal/fetch/dochtml/internal/render: remove obsolete TODO comment

This task was resolved via declVisitor in commit c29176c6819e2879ed1a47f13ce56ec79ca5923b.

Change-Id: Ibaeb32dc6333e26684896212ce3eb7aca733a101
GitHub-Last-Rev: 34fa1a30480c77dd0a5dbfd24c5b2aa912ea7d5a
GitHub-Pull-Request: golang/pkgsite#8
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/258157
Reviewed-by: Julie Qiu <julie@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
diff --git a/internal/fetch/dochtml/internal/render/render.go b/internal/fetch/dochtml/internal/render/render.go
index c56f623..232df05 100644
--- a/internal/fetch/dochtml/internal/render/render.go
+++ b/internal/fetch/dochtml/internal/render/render.go
@@ -17,8 +17,6 @@
 	"golang.org/x/pkgsite/internal/fetch/internal/doc"
 )
 
-// TODO: Hide slice elements and long strings to avoid overwhelming godoc.
-
 var (
 	// Regexp for headings.
 	headingHead = `^[\p{Lu}]`                                  // any uppercase letter