Remove external package loading autogate/compat flag and make default.

Author: dom96

src/workerd/io/compatibility-date.capnp

@@ -646,12 +646,8 @@ struct CompatibilityFlags @0x8f8c1b68151b6cef {
   # the behavior to uppercase all methods prior to parsing to that the method is always
   # recognized if it is a known method.
 
-  pythonExternalPackages @66 :Bool
+  obsolete66 @66 :Bool
       $compatEnableFlag("python_external_packages");
-  # Temporary flag to load Python packages from external bundle loaded at runtime.
-  #
-  # This is a compat flag so that we can opt in our test workers into it before rolling out to
-  # everyone.
 
   noTopLevelAwaitInRequire @67 :Bool
       $compatEnableFlag("disable_top_level_await_in_require")

src/workerd/server/workerd-api.c++

@@ -572,15 +572,8 @@ void WorkerdApi::compileModules(jsg::Lock& lockParam,
           jsg::ModuleRegistry::Type::INTERNAL);
 
       // Inject packages tar file
-      if (featureFlags.getPythonExternalPackages() ||
-          util::Autogate::isEnabled(util::AutogateKey::PYTHON_FETCH_INDIVIDUAL_PACKAGES)) {
-        modules->addBuiltinModule("pyodide-internal:packages_tar_reader", "export default { }"_kj,
-            workerd::jsg::ModuleRegistry::Type::INTERNAL, {});
-      } else {
-        modules->addBuiltinModule("pyodide-internal:packages_tar_reader",
-            jsg::alloc<ReadOnlyBuffer>(PYODIDE_PACKAGES_TAR.get()),
-            workerd::jsg::ModuleRegistry::Type::INTERNAL);
-      }
+      modules->addBuiltinModule("pyodide-internal:packages_tar_reader", "export default { }"_kj,
+          workerd::jsg::ModuleRegistry::Type::INTERNAL, {});
 
       // Inject artifact bundler.
       modules->addBuiltinModule("pyodide-internal:artifacts",

src/workerd/util/autogate.c++

@@ -19,8 +19,6 @@ kj::StringPtr KJ_STRINGIFY(AutogateKey key) {
       return "test-workerd"_kj;
     case AutogateKey::STREAMING_TAIL_WORKERS:
       return "streaming-tail-workers"_kj;
-    case AutogateKey::PYTHON_FETCH_INDIVIDUAL_PACKAGES:
-      return "python-fetch-individual-packages";
     case AutogateKey::NumOfKeys:
       KJ_FAIL_ASSERT("NumOfKeys should not be used in getName");
   }

src/workerd/util/autogate.h

@@ -15,9 +15,6 @@ namespace workerd::util {
 enum class AutogateKey {
   TEST_WORKERD,
   STREAMING_TAIL_WORKERS,
-  // Fetches Python packages as individual bundles from GCS instead of using a single big bundle
-  // embedded in the binary
-  PYTHON_FETCH_INDIVIDUAL_PACKAGES,
   NumOfKeys  // Reserved for iteration.
 };