[CI][Bugfix] Fix failing Blackwell test (#24993)

Signed-off-by: Matthew Bonanni <mbonanni001@gmail.com>
Co-authored-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com>

vllm/model_executor/layers/fused_moe/modular_kernel.py

@@ -506,12 +506,9 @@ class SharedResizableBuffer:
     def get(self, shape: tuple[int, ...], device: torch.device,
             dtype: torch.dtype):
         shape_numel = prod(shape)
-        if self.buffer is None or self.buffer.numel() < shape_numel:
+        if (self.buffer is None or self.buffer.numel() < shape_numel
+                or self.buffer.device != device or self.buffer.dtype != dtype):
             self.buffer = torch.empty(shape_numel, device=device, dtype=dtype)
-        assert self.buffer.device == device, \
-            f"Buffer device mismatch: {self.buffer.device} != {device}"
-        assert self.buffer.dtype == dtype, \
-            f"Buffer dtype mismatch: {self.buffer.dtype} != {dtype}"
         return self.buffer[:shape_numel].view(*shape)