Remove one colon check for well-formed edge tags

[juliannzhou]

What does this PR do?

This PR removes the one colon check for well-formed edge tags.

Motivation

https://dd.slack.com/archives/C06P5GB4UT1/p1717608298448609

Reviewer's Checklist

• Changed code has unit tests for its functionality at or near 100% coverage.
• System-Tests covering this feature have been added and enabled with the va.b.c-dev version tag.
• There is a benchmark for any new code, or changes to existing code.
• If this interacts with the agent in a new way, a system test has been added.
• Add an appropriate team label so this PR gets put in the right place for the release notes.
• Non-trivial go.mod changes, e.g. adding new modules, are reviewed by @DataDog/dd-trace-go-guild.

Unsure? Have a question? Request a review!

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-06-11 14:03:43

Comparing candidate commit e0b0135 in PR branch juliann.zhou/remove-one-colon-tag-check with baseline commit d789322 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 44 metrics, 0 unstable metrics.

[darccio]

@piochelepiotr Is it safe to release the previuosly merged PR or I should wait for this PR?

[piochelepiotr]

@piochelepiotr Is it safe to release the previuosly merged PR or I should wait for this PR?

@piochelepiotr Is it safe to release the previuosly merged PR or I should wait for this PR?

It's safe to release the previously merged PR.

[piochelepiotr]

Let's add a test for a sns arn, and make sure it passes.

[juliannzhou]

/merge

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[darccio]

LGTM