misc: remove unused load_cuda_ops function (#1649)

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## 📌 Description

`load_cuda_ops` was no longer used and should be removed.

## 🔍 Related Issues

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## 🧪 Tests

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## Reviewer Notes

cc @abcdabcd987

Author: yzh119

flashinfer/jit/core.py

@@ -1,7 +1,6 @@
 import dataclasses
 import logging
 import os
-import warnings
 from contextlib import nullcontext
 from pathlib import Path
 from typing import List, Optional, Sequence, Union
@@ -248,28 +247,3 @@ def build_jit_specs(
         ninja_path = tmpdir / "flashinfer_jit.ninja"
         write_if_different(ninja_path, "\n".join(lines))
         run_ninja(jit_env.FLASHINFER_JIT_DIR, ninja_path, verbose)
-
-
-def load_cuda_ops(
-    name: str,
-    sources: List[Union[str, Path]],
-    extra_cflags: Optional[List[str]] = None,
-    extra_cuda_cflags: Optional[List[str]] = None,
-    extra_ldflags=None,
-    extra_include_paths=None,
-):
-    # TODO(lequn): Remove this function and use JitSpec directly.
-    warnings.warn(
-        "load_cuda_ops is deprecated. Use JitSpec directly.",
-        DeprecationWarning,
-        stacklevel=2,
-    )
-    spec = gen_jit_spec(
-        name=name,
-        sources=sources,
-        extra_cflags=extra_cflags,
-        extra_cuda_cflags=extra_cuda_cflags,
-        extra_ldflags=extra_ldflags,
-        extra_include_paths=extra_include_paths,
-    )
-    return spec.build_and_load()