test: removed try...except

Author: Stefan Mitic

lib/matplotlib/tests/test_axes.py

@@ -4168,12 +4168,7 @@ def test_specgram_angle():
 
 def test_specgram_fs_none():
     """Test axes.specgram when Fs is None, should not throw error."""
-
-    try:
-        spec, freqs, t, im = plt.specgram(np.ones(300), Fs=None)
-    except Exception as e:
-        raise pytest.fail("DID RAISE {0}".format(e))
-
+    spec, freqs, t, im = plt.specgram(np.ones(300), Fs=None)
     xmin, xmax, freq0, freq1 = im.get_extent()
     assert xmin == 32 and xmax == 96