Remove unnecessary build step.

No more external_plugin_deps.bzl.

Change-Id: If90d7e09c3e4982d0402e380a794ad662530c84e
diff --git a/src/main/resources/Documentation/build.md b/src/main/resources/Documentation/build.md
index 34e8176..df78460 100644
--- a/src/main/resources/Documentation/build.md
+++ b/src/main/resources/Documentation/build.md
@@ -14,15 +14,6 @@
 ln -s ../../find-owners .
 ```
 
-Put the external dependency Bazel build file into the Gerrit /plugins
-directory, replacing the existing empty one.
-
-```bash
-cd gerrit/plugins
-rm external_plugin_deps.bzl
-ln -s find-owners/external_plugin_deps.bzl .
-```
-
 From Gerrit source tree issue the command:
 
 ```bash