Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/k8s.io/kubernetes/api/openapi-spec/BUILD

@@ -0,0 +1,21 @@
+package(default_visibility = ["//visibility:public"])
+
+filegroup(
+    name = "swagger-spec",
+    srcs = glob([
+        "**/*.json",
+    ]),
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)