Allow broadcasting in cross()

Author: asmeurer

array_api_strict/linalg.py

@@ -73,9 +73,6 @@ def cross(x1: Array, x2: Array, /, *, axis: int = -1) -> Array:
     """
     if x1.dtype not in _numeric_dtypes or x2.dtype not in _numeric_dtypes:
         raise TypeError('Only numeric dtypes are allowed in cross')
-    # Note: this is different from np.cross(), which broadcasts
-    if x1.shape != x2.shape:
-        raise ValueError('x1 and x2 must have the same shape')
     if x1.ndim == 0:
         raise ValueError('cross() requires arrays of dimension at least 1')
     # Note: this is different from np.cross(), which allows dimension 2