remove extra dependencies (pytorch#1093)

Summary:
Pull Request resolved: pytorch#1093

No longer needed after D35984814 (pytorch@1656a97)

Reviewed By: brad-mengchi

Differential Revision: D36059561

fbshipit-source-id: 163bea514a73f9f333a31e8aa5fd3a87882fc68c

fbgemm_gpu/fbgemm_gpu/split_table_batched_embeddings_ops.py

@@ -20,17 +20,6 @@
 from fbgemm_gpu.split_embedding_configs import SparseType
 from torch import Tensor, nn
 
-try:
-    # pyre-ignore[21]
-    from fbgemm_gpu import open_source  # noqa: F401
-except Exception:
-    torch.ops.load_library(
-        "//deeplearning/fbgemm/fbgemm_gpu/fb:embedding_inplace_update"
-    )
-    torch.ops.load_library(
-        "//deeplearning/fbgemm/fbgemm_gpu/fb:embedding_inplace_update_cpu"
-    )
-
 ASSOC = 32
 # Maximum number of times prefetch() can be called without
 # a corresponding forward() call