Remove the commented-out snapshot plugin api lines

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

Change-Id: Ib74a57754413897c7baf4a93f8e24d521c17c44d
diff --git a/WORKSPACE b/WORKSPACE
index 69b8ab9..4380004 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -35,13 +35,10 @@
     repository = GERRIT,
 )
 
+# Load plugin API
 load(
     "@com_googlesource_gerrit_bazlets//:gerrit_api.bzl",
     "gerrit_api",
 )
 
-# Load release Plugin API
 gerrit_api()
-
-# Load snapshot Plugin API
-#gerrit_api(version = "3.0.xy-SNAPSHOT")