chore(gae): delete old region tags from projectionqueries.go

[OremGLG]

Description

Delete old region tags from docs/appengine/datastore/projectionqueries/projectionqueries.go following the PRs #5108 and #5119

Fixes
b/392146363
b/392145933
b/392146306
b/391185644
b/391186679

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Contributing Guidelines from CONTRIBUTING.MD
• Tests pass: go test -v ./.. (see Testing)
• Code formatted: gofmt (see Formatting)
• Vetting pass: go vet (see Formatting)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[code-review-assist]

Hi team,

I'm currently reviewing this pull request and will provide feedback shortly. In the meantime, here's a summary for you and other reviewers to quickly get up to speed:

This pull request, submitted by OremGLG, aims to clean up the projectionqueries.go file in the Google App Engine Datastore samples by removing outdated region tags. The changes are purely cosmetic and do not affect the functionality of the code.

Here's a breakdown of the changes:

• File Modified: docs/appengine/datastore/projectionqueries/projectionqueries.go
• Changes: The PR removes several instances of old region tags (e.g., // [START using_1], // [END using_1]). These tags were likely used for documentation purposes but are no longer needed. The removal simplifies the code and improves readability.
  • Lines 32-34 were modified to remove // [START using_1] and // [END using_1].
  • Lines 41-41 were modified to remove // [START using_2] and // [END using_2].
  • Lines 64-69 were modified to remove // [START grouping] and // [END grouping].
  • Lines 79-81 were modified to remove // [START projections_and_multiple_valued_properties_1] and // [END projections_and_multiple_valued_properties_1].
  • Lines 88-90 were modified to remove // [START projections_and_multiple_valued_properties_2] and // [END projections_and_multiple_valued_properties_2].
• Intent: To improve code cleanliness and maintainability by removing obsolete region tags.
• Associated Issues: The PR description links to several Google internal bug reports (b/392146363, b/392145933, b/392146306, b/391185644, b/391186679) suggesting this cleanup is part of a larger effort.

The author has indicated that the tests, code formatting, and vetting have passed.

---

A little haiku to brighten your day:

Old tags now removed,
Code shines, clean and bright anew,
Review's quick and fun.

[snippet-bot]

Here is the summary of changes.

You are about to delete 5 region tags.

• docs/appengine/datastore/projectionqueries/projectionqueries.go:32, tag using_1
• docs/appengine/datastore/projectionqueries/projectionqueries.go:41, tag using_2
• docs/appengine/datastore/projectionqueries/projectionqueries.go:64, tag grouping
• docs/appengine/datastore/projectionqueries/projectionqueries.go:79, tag projections_and_multiple_valued_properties_1
• docs/appengine/datastore/projectionqueries/projectionqueries.go:88, tag projections_and_multiple_valued_properties_2

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