doc/go1.11: remove go/scanner note

The relevant change was reverted in CL 127658.

Updates #26671

Change-Id: I0c555c8e18f4c7e289de56d3ef840d79cf0adac2
Reviewed-on: https://go-review.googlesource.com/127659Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

doc/go1.11.html

@@ -533,17 +533,7 @@ for k := range m {
 
 </dl><!-- encoding/csv -->
 
-<dl id="go/scanner"><dt><a href="/pkg/go/scanner/">go/scanner</a></dt>
-  <dd>
-    <p><!-- CL 100235 -->
-      The package no longer modifies filenames in <code>//line</code>
-      directives when recording position information or reporting
-      errors. Previously the package would change relative paths
-      in <code>//line</code> directives to absolute paths by
-      prepending the source file directory.
-    </p>
-
-</dl><!-- go/scanner -->
+<!-- CL 100235 was reverted -->
 
 <dl id="html/template"><dt><a href="/pkg/html/template/">html/template</a></dt>
   <dd>