Revert "Added zero check to inverse op, resolving crash seen in inverse & matrix_pow tests (#236)"

This reverts commit 5d9be8c.

Author: kulinseth

aten/src/ATen/native/mps/operations/Inverse.mm

@@ -24,10 +24,6 @@
     MPSStream* stream = getCurrentMPSStream();
     info.zero_();
 
-    if (A.numel() == 0) {
-        return;
-    }
-
     struct CachedGraph : public MPSCachedGraph
     {
         CachedGraph(MPSGraph *graph) : MPSCachedGraph(graph) {}

test/test_mps.py

@@ -9426,6 +9426,8 @@ class TestConsistency(TestCase):
         'nonzero': [torch.bool, torch.uint8, torch.float16],
         'median': [torch.float32, torch.int16, torch.int32, torch.uint8, torch.int16],
         'sgn': [torch.bool],
+        'linalg.inv': [torch.float32],
+        'linalg.inv_ex': [torch.float32],
         'linalg.matrix_power': [torch.float32],
         'nn.functional.interpolate': [torch.float32],
         'resize_': [torch.bool, torch.float16, torch.float32, torch.int16, torch.int32, torch.int64, torch.uint8],