ddtrace/tracer: remove remote config check on env and service name

[genesor]

What does this PR do?

Per APMAPI-1003 the remote config clients should now trust that the configurations they receive belong to them.

Motivation

With Adaptive Sampling, the Go tracer is rejecting remote sampling rules that use SSI when the tracer sees that the values of DD_ENV are empty. However, the env is automatically configured in the agent with SSI, so this PR removes all filtering of DD_SERVICE and DD_ENV in the tracer as it is already being done in remote config.

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.
• For internal contributors, a matching PR should be created to the v2-dev branch and reviewed by @DataDog/apm-go.

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[datadog-datadog-prod-us1]

Datadog Report

Branch report: ben.db/APMAPI-1005-remove-matching-rc-check
Commit report: 2268e75
Test service: dd-trace-go

✅ 0 Failed, 5387 Passed, 72 Skipped, 3m 6.8s Total Time

[pr-commenter]

Benchmarks

Benchmark execution time: 2025-03-06 11:05:49

Comparing candidate commit 4bc778b in PR branch ben.db/APMAPI-1005-remove-matching-rc-check with baseline commit 18fec70 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 60 metrics, 2 unstable metrics.