code: def eliminate_self_loops(A):
      """Remove self-loops from the adjacency matrix."""
      A = A.tolil()
      A.setdiag(0)
      A = A.tocsr()
      A.eliminate_zeros()
      return A
  
imports: import os
  import numpy
  import scipy.sparse
  from ..None import backend, transforms
  from ..convert import graph
  from .dgl_dataset import DGLBuiltinDataset
  from .utils import _get_dgl_url, deprecate_class, deprecate_property, load_graphs, save_graphs
label_desc: Use image node_id 1 for calling a global function with example usage: eliminate_self_loops(A) and returns: A