Revert changes to env_override.py

Author: clee1994

tpu_inference/env_override.py

@@ -7,8 +7,7 @@
 # This prevents errors when trying to create CUDA streams on TPU hardware
 # The issue was introduced by vllm-project/vllm#26440
 os.environ["VLLM_DISABLE_SHARED_EXPERTS_STREAM"] = "1"
-os.environ[
-    "LIBTPU_INIT_ARGS"] = "--xla_tpu_use_tc_device_shape_on_sc=true --xla_tpu_scheduler_percent_shared_memory_limit=1000"
+os.environ["LIBTPU_INIT_ARGS"] = "--xla_tpu_use_tc_device_shape_on_sc=true"
 
 # Monkeypatch vLLM to avoid ImportError: cannot import name 'SamplingParams' from 'vllm'
 # in vllm/v1/... submodules due to circular imports or lazy loading failures.
@@ -23,4 +22,4 @@
         from vllm.sampling_params import RequestOutputKind
         vllm.RequestOutputKind = RequestOutputKind
 except ImportError:
-    pass
+    pass