Removed unnecessary pass lines and commented debugging lines

PIL/ImagePalette.py

@@ -225,8 +225,8 @@ def load(filename):
             p = PaletteFile.PaletteFile(fp)
             lut = p.getpalette()
         except (SyntaxError, ValueError):
-            import traceback
-            traceback.print_exc()
+            #import traceback
+            #traceback.print_exc()
             pass
 
     if not lut:

Tests/test_imageshow.py

@@ -9,7 +9,6 @@ class TestImageShow(PillowTestCase):
     def test_sanity(self):
         dir(Image)
         dir(ImageShow)
-        pass
 
 
 if __name__ == '__main__':

Tests/test_imagewin.py

@@ -8,7 +8,6 @@ class TestImageWin(PillowTestCase):
 
     def test_sanity(self):
         dir(ImageWin)
-        pass
 
     def test_hdc(self):
         # Arrange