Keep PDL module check but remove unnecessary env var setting

The check skips the GitHub API call for old vLLM versions.
No need to set TRITON_DISABLE_PDL for versions without PDL support.

unsloth/import_fixes.py

@@ -593,6 +593,22 @@ def fix_vllm_pdl_blackwell():
     except Exception:
         return
 
+    # Helper to check if module spec exists
+    def _spec_exists(name):
+        try:
+            return importlib.util.find_spec(name) is not None
+        except (ModuleNotFoundError, ValueError):
+            return False
+
+    # Check if vLLM has the PDL-related modules before doing internet check
+    has_utils = _spec_exists("vllm.lora.ops.triton_ops.utils")
+    has_expand_op = _spec_exists("vllm.lora.ops.triton_ops.lora_expand_op")
+    has_shrink_op = _spec_exists("vllm.lora.ops.triton_ops.lora_shrink_op")
+
+    if not has_utils and not has_expand_op and not has_shrink_op:
+        # Old vLLM version without PDL support - nothing to patch
+        return
+
     # Check if GitHub issue is closed (fix merged upstream)
     issue_closed = False
     try: