chore(profiling): native extensions are no longer optional on support…

…ed platforms (#9169)

This patch changes the affinity for certain profiling-related
extensions. They were marked as optional during our vetting process, but
now should be built everywhere. This isn't a problem for CI. Serverless
currently strips these components out post-build, and that's still OK.

## Checklist

- [x] Change(s) are motivated and described in the PR description
- [x] Testing strategy is described if automated tests are not included
in the PR
- [x] Risks are described (performance impact, potential for breakage,
maintainability)
- [x] Change is maintainable (easy to change, telemetry, documentation)
- [x] [Library release note
guidelines](https://ddtrace.readthedocs.io/en/stable/releasenotes.html)
are followed or label `changelog/no-changelog` is set
- [x] Documentation is included (in-code, generated user docs, [public
corp docs](https://github.com/DataDog/documentation/))
- [x] Backport labels are set (if
[applicable](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting))
- [x] If this PR changes the public interface, I've notified
`@DataDog/apm-tees`.

## Reviewer Checklist

- [x] Title is accurate
- [x] All changes are related to the pull request's stated goal
- [x] Description motivates each change
- [x] Avoids breaking
[API](https://ddtrace.readthedocs.io/en/stable/versioning.html#interfaces)
changes
- [x] Testing strategy adequately addresses listed risks
- [x] Change is maintainable (easy to change, telemetry, documentation)
- [x] Release note makes sense to a user of the library
- [x] Author has acknowledged and discussed the performance implications
of this PR as reported in the benchmarks PR comment
- [x] Backport labels are set in a manner that is consistent with the
[release branch maintenance
policy](https://ddtrace.readthedocs.io/en/latest/contributing.html#backporting)

Co-authored-by: sanchda <sanchda@users.noreply.github.com>

setup.py

@@ -42,9 +42,6 @@
 
 DEBUG_COMPILE = "DD_COMPILE_DEBUG" in os.environ
 
-# stack_v2 profiling extensions are optional, unless they are made explicitly required by this environment variable
-STACK_V2_REQUIRED = "DD_STACK_V2_REQUIRED" in os.environ
-
 IS_PYSTON = hasattr(sys, "pyston_version_info")
 
 LIBDDWAF_DOWNLOAD_DIR = HERE / "ddtrace" / "appsec" / "_ddwaf" / "libddwaf"
@@ -462,7 +459,7 @@ def get_exts_for(name):
                     "-DPY_MINOR_VERSION={}".format(sys.version_info.minor),
                     "-DPY_MICRO_VERSION={}".format(sys.version_info.micro),
                 ],
-                optional=not STACK_V2_REQUIRED,
+                optional=False,
             )
         )
 
@@ -472,7 +469,7 @@ def get_exts_for(name):
                 CMakeExtension(
                     "ddtrace.internal.datadog.profiling.stack_v2._stack_v2",
                     source_dir=STACK_V2_DIR,
-                    optional=not STACK_V2_REQUIRED,
+                    optional=False,
                 ),
             )