Remove references to gyp from DEPS and docs

Bug: 826218
Change-Id: I176e1aeb0b24b21c6b4e5ee40910dce2bce52c95
Reviewed-on: https://chromium-review.googlesource.com/1239461
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#593522}
diff --git a/docs/using_a_linux_chroot.md b/docs/using_a_linux_chroot.md
index da37cfe..a8f4304 100644
--- a/docs/using_a_linux_chroot.md
+++ b/docs/using_a_linux_chroot.md
@@ -16,7 +16,7 @@
     Run `build /install-build-deps.sh`, then exit the rooted chroot.
 *   Delete your out/ directory if you had a previous non-chrooted build.
 *   To enter your chroot as normal user, run `schroot -c lucid64`.
-*   Now run `build/gyp_chromium`, compile and run DumpRenderTree within chroot.
+*   Now compile and run DumpRenderTree within chroot.
 
 ## Tips and Tricks