Remove the commented-out snapshot plugin api lines

Rely on bazlets README documentation for how to use a SNAPSHOT version.

Change-Id: I2fbe2d26f063dd6243093c8dc15a3e7e5c3de137

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index 96d127a..3d268a8 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -12,12 +12,8 @@
     "gerrit_api",
 )
 
-# Load release Plugin API
 gerrit_api()
 
-# Load snapshot Plugin API
-#gerrit_api(version = "3.0.xy-SNAPSHOT")
-
 load("//:external_plugin_deps.bzl", "external_plugin_deps")
 
 external_plugin_deps()