chore(profiling): native extensions are no longer optional on supported platforms

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,
                 ),
             )