Duplicated assert in test_independent unit test

[matthewfeickert]

Description

There is a duplicated assert that doesn't need to be here

pyhf/tests/test_probability.py

Lines 64 to 77 in 8c4d1ba

	def test_independent(backend):
	tb, _ = backend
	result = probability.Independent(
	probability.Poisson(tb.astensor([10.0, 10.0]))
	).log_prob(tb.astensor([2.0, 3.0]))
	p1 = probability.Poisson(tb.astensor([10.0])).log_prob(tb.astensor(2.0))
	p2 = probability.Poisson(tb.astensor([10.0])).log_prob(tb.astensor(3.0))
	assert tb.tolist(probability.Simultaneous._joint_logpdf([p1, p2]))[0] == tb.tolist(
	result
	)
	assert tb.tolist(probability.Simultaneous._joint_logpdf([p1, p2]))[0] == tb.tolist(
	result
	)

Just the first assert is needed.

This was first noticed by @kratsg in PR #1232