Remove unneeded `Juxt` token (#208)

I started reading through the parsing code and noticed that this token
was being unused. Let me know if you'd like me to make any further
changes!

---------

Co-authored-by: Abel Sen <[e-mail]>

scrapscript.py

···
 
 
 @dataclass(eq=True)
-class Juxt(Token):
-    # The space between other tokens that indicates function application.
-    pass
-
-
-@dataclass(eq=True)
 class VariantToken(Token):
     value: str
 
···
             # TODO: revisit whether to use @ or . for field access
             l = Access(l, parse(tokens, pr))
         else:
-            assert not isinstance(op, Juxt)
             assert isinstance(op, Operator)
             l = Binop(BinopKind.from_str(op.value), l, parse(tokens, pr))
     return l