Removed BUCK files and Buck related support scripts and other collateral.

Change-Id: Ic6debd17e2d9d2f1c8b894f816efaca2853e433f
diff --git a/tools/build/bazel/osgi_java_library.bzl b/tools/build/bazel/osgi_java_library.bzl
index bd68a30..b7a73cf 100644
--- a/tools/build/bazel/osgi_java_library.bzl
+++ b/tools/build/bazel/osgi_java_library.bzl
@@ -281,7 +281,7 @@
             executable = True,
             cfg = "host",
             allow_files = True,
-            default = Label("//tools/build/buck-plugin:swagger_generator"),
+            default = Label("//tools/build/swagger:swagger_generator"),
         ),
         "swagger_java": attr.output(),
     },
@@ -305,7 +305,7 @@
             executable = True,
             cfg = "host",
             allow_files = True,
-            default = Label("//tools/build/buck-plugin:swagger_generator"),
+            default = Label("//tools/build/swagger:swagger_generator"),
         ),
         "swagger_json": attr.output(),
     },