internal/godoc/dochtml/internal/render: remove unused ctx on Renderer

Change-Id: I3c230107df49fcd40185889d4b7fe32f710a1b80
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/260733
Trust: Julie Qiu <julie@golang.org>
Run-TryBot: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
diff --git a/internal/godoc/dochtml/internal/render/render.go b/internal/godoc/dochtml/internal/render/render.go
index 8cbdc13..299c64d 100644
--- a/internal/godoc/dochtml/internal/render/render.go
+++ b/internal/godoc/dochtml/internal/render/render.go
@@ -85,7 +85,6 @@
 		packageURL:        packageURL,
 		disableHotlinking: disableHotlinking,
 		disablePermalinks: disablePermalinks,
-		ctx:               ctx,
 	}
 }