vendor: Glide ipdate, droppping tectonic-node-controller and trimming…

… cluster-api

Generated with:

  $ glide update --strip-vendor
  $ glide-vc --use-lock-file --no-tests --only-code
  $ bazel run //:gazelle

using:

  $ glide --version
  (cd $GOPATH/src/github.com/Masterminds/glide && git describe)
  v0.13.1-7-g3e13fd1
  $ (cd $GOPATH/src/github.com/sgotti/glide-vc && git describe)
  v0.1.0-2-g6ddf6ee
  $ bazel version
  Build label: 0.16.1- (@non-git)
  Build target: bazel-out/k8-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
  Build time: Mon Aug 13 16:42:29 2018 (1534178549)
  Build timestamp: 1534178549
  Build timestamp as int: 1534178549

The tectonic-node-controller removal catches us up with 596591b (.*:
replace tectonic node controller with machine config operator,
2018-09-10, #232).

The cluster-api trim adjusts the content from b00e40e (vendor: Add
client from sigs.k8s.io/cluster-api, 2018-09-04, #119).  Because
cluster-api wasn't in glide.lock, I suspect neither glide nor glide-vc
were run before that commit.