Fix comments in GN standalone docs.

The GN standalone docs appear to have had from day one a placeholder
for a section that was never written. This CL deletes that placeholder
and tweaks the wording above it to hopefully make a bit more sense.

R=thakis@chromium.org, brettw@chromium.org

Review-Url: https://codereview.chromium.org/2801733004
Cr-Original-Commit-Position: refs/heads/master@{#462604}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 707f1a623b690a870f6378ccf074b51cdaad9556
1 file changed
tree: 5c38cb3c32f10aded3ad8879b2159e427e192f4d
  1. tools/