remove laplacian

Author: ievred

ot/utils.py

@@ -49,12 +49,6 @@ def kernel(x1, x2, method='gaussian', sigma=1, **kwargs):
     return K
 
 
-def laplacian(x):
-    """Compute Laplacian matrix"""
-    L = np.diag(np.sum(x, axis=0)) - x
-    return L
-
-
 def unif(n):
     """ return a uniform histogram of length n (simplex)