Replace fortune-teller app in e2e tests with gRPC github repo's official greeter app

[longwuyuan]

The e2e tests has a section for gRPC. it uses a app called fortune-teller seen at https://github.com/kubernetes/ingress-nginx/blob/master/test/e2e/framework/grpc_fortune_teller.go . This app is outdated as it uses bazel for build and also fails to build in the current system. Replace this app with https://github.com/grpc/grpc-go/blob/91e0aeb192456225adf27966d04ada4cf8599915/examples/features/reflection/server/main.go .
More info in this PR #7317

/kind feature

[longwuyuan]

/assign

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/lifecycle stale

[k8s-triage-robot]

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/lifecycle rotten

[k8s-triage-robot]

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/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

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• After 90d of inactivity, lifecycle/stale is applied
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/close

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[longwuyuan]

/reopen
/important-longterm

[k8s-ci-robot]

@longwuyuan: Reopened this issue.

In response to this:

/reopen
/important-longterm

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[k8s-ci-robot]

@longwuyuan: This issue is currently awaiting triage.

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[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

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Please send feedback to sig-contributor-experience at kubernetes/community.

/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
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/close

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[longwuyuan]

/reopen
/priority important-longterm
/help

[k8s-ci-robot]

@longwuyuan: Reopened this issue.

In response to this:

/reopen
/priority important-longterm
/help

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[longwuyuan]

/good-first-issue

[k8s-ci-robot]

@longwuyuan:
This request has been marked as suitable for new contributors.

Guidelines

Please ensure that the issue body includes answers to the following questions:

• Why are we solving this issue?
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/good-first-issue

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[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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Please send feedback to sig-contributor-experience at kubernetes/community.

/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
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You can:

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/close

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[longwuyuan]

/reopen
/priority important-longterm

[k8s-ci-robot]

@longwuyuan: Reopened this issue.

In response to this:

/reopen
/priority important-longterm

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[longwuyuan]

/help

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue or PR with /reopen
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Please send feedback to sig-contributor-experience at kubernetes/community.

/close

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue.

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue or PR with /reopen
• Mark this issue or PR as fresh with /remove-lifecycle rotten
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Please send feedback to sig-contributor-experience at kubernetes/community.

/close

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