Remove wrong self reference in CUDA support for invokeai

modules/sd_hijack_optimizations.py

@@ -181,7 +181,7 @@ def einsum_op_cuda(q, k, v):
     mem_free_torch = mem_reserved - mem_active
     mem_free_total = mem_free_cuda + mem_free_torch
     # Divide factor of safety as there's copying and fragmentation
-    return self.einsum_op_tensor_mem(q, k, v, mem_free_total / 3.3 / (1 << 20))
+    return einsum_op_tensor_mem(q, k, v, mem_free_total / 3.3 / (1 << 20))
 
 def einsum_op(q, k, v):
     if q.device.type == 'cuda':