disable istio provisioner by default

[medyagh]

as side effect of istio addon PR, the istio provisioner was enabled by default.
closes #6271

[k8s-ci-robot]

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[codecov-io]

Codecov Report

Merging #6272 into master will decrease coverage by 0.06%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #6272      +/-   ##
==========================================
- Coverage   38.28%   38.21%   -0.07%     
==========================================
  Files         124      123       -1     
  Lines        8257     8255       -2     
==========================================
- Hits         3161     3155       -6     
- Misses       4686     4690       +4     
  Partials      410      410

Impacted Files	Coverage Δ
cmd/minikube/cmd/config/profile_list.go	4.1% <ø> (ø)	⬆️
pkg/addons/addons.go	28.18% <ø> (ø)	⬆️
pkg/minikube/assets/addons.go	37.93% <ø> (ø)	⬆️
pkg/minikube/config/config.go	56.66% <ø> (ø)	⬆️
pkg/minikube/driver/driver.go	78.46% <0%> (-3.8%)	⬇️
cmd/minikube/cmd/config/addons_list.go	11.76% <0%> (-12.05%)	⬇️
pkg/minikube/bootstrapper/bootstrapper.go	0% <0%> (ø)	⬆️
cmd/minikube/cmd/start.go	21.99% <0%> (-0.05%)	⬇️
pkg/minikube/out/style.go	91.66% <0%> (ø)	⬆️

[TravisBuddy]

Travis tests have failed

Hey @medyagh,
Please read the following log in order to understand the failure reason.
It'll be awesome if you fix what's wrong and commit the changes.

TravisBuddy Request Identifier: 55ff2800-33f9-11ea-b5a3-65565334105f

[medyagh]

/ok-to-test

[minikube-bot]

All Times minikube: [ 125.045939 127.768756 126.033683]
All Times Minikube (PR 6272): [ 125.748428 130.206022 126.507110]

Average minikube: 126.282792
Average Minikube (PR 6272): 127.487186

Averages Time Per Log

+----------------------+-----------+--------------------+
|         LOG          | MINIKUBE  | MINIKUBE (PR 6272) |
+----------------------+-----------+--------------------+
| minikube v           |  0.426152 |           0.428816 |
| Creating kvm2        | 47.949609 |          48.288132 |
| Preparing Kubernetes | 50.703214 |          51.272628 |
| Pulling images       |  3.386735 |           3.816653 |
| Launching Kubernetes | 21.043362 |          20.712417 |
| Waiting for cluster  |  2.726856 |           2.922363 |
| Done                 |           |                    |
|                      |  0.045176 |           0.045841 |
+----------------------+-----------+--------------------+

[afbjorklund]

Code change looks good, but some typos in the documentation

[minikube-bot]

All Times minikube: [ 110.479317 125.777875 123.730573]
All Times Minikube (PR 6272): [ 122.807261 122.653593 122.875092]

Average minikube: 119.995921
Average Minikube (PR 6272): 122.778649

Averages Time Per Log

+----------------------+-----------+--------------------+
|         LOG          | MINIKUBE  | MINIKUBE (PR 6272) |
+----------------------+-----------+--------------------+
| minikube v           |  0.300463 |           0.292043 |
| Creating kvm2        | 46.155901 |          45.839767 |
| Preparing Kubernetes | 48.448020 |          50.709116 |
| Pulling images       |  2.966846 |           2.840341 |
| Launching Kubernetes | 19.359838 |          20.463187 |
| Waiting for cluster  |  2.714718 |           2.583730 |
| Done                 |           |                    |
|                      |  0.050135 |           0.050464 |
+----------------------+-----------+--------------------+

[afbjorklund]

@medya: please rebase, there’s like a dozen unrelated commits here ?

[medyagh]

closing in favor of #6315