Drop `-j` from pybmo conf; it's default now

dotfiles/config/bmo/menu.ini

     selector    = pybmo dmenu
 
 [menu.def.uris]
-    generator   = pybmo conf -j -c wish.ini
+    generator   = pybmo conf -c wish.ini
     selector_args = -l 20 --split =
     consumer    = bmo wish -f