Add glide.yaml and vendor deps

vendor/github.com/docker/engine-api/client/plugin_remove.go

@@ -0,0 +1,22 @@
+// +build experimental
+
+package client
+
+import (
+	"net/url"
+
+	"github.com/docker/engine-api/types"
+	"golang.org/x/net/context"
+)
+
+// PluginRemove removes a plugin
+func (cli *Client) PluginRemove(ctx context.Context, name string, options types.PluginRemoveOptions) error {
+	query := url.Values{}
+	if options.Force {
+		query.Set("force", "1")
+	}
+
+	resp, err := cli.delete(ctx, "/plugins/"+name, query, nil)
+	ensureReaderClosed(resp)
+	return err
+}