[S02] Removed useless statement concerning quoting forms.

Specifically, q:z<foo> will always be a quote form using angle brackets
delimiters and an additional (imaginary in this case) :z adverb that
didn't take any arguments, because according to the Adverbial Pair Forms
section above, only parens give arguments to quote form adverbs.

S02-bits.pod

@@ -3874,9 +3874,7 @@ semantics.  That is, C<''>, C<"">, C<< <> >>, C<«»>, C<``>, C<()>,
 C<[]>, and C<{}> have no special significance when used in place of
 C<//> as delimiters.  There may be whitespace before the
 opening delimiter. (Which is mandatory for parens because C<q()> is
-a subroutine call and C<q:w(0)> is an adverb with arguments).  Other
-brackets may also require whitespace when they would be understood as
-an argument to an adverb in something like C<< q:z<foo>// >>.
+a subroutine call and C<q:w(0)> is an adverb with arguments).
 A colon may never be used as the delimiter since it will always be
 taken to mean another adverb regardless of what's in front of it.
 Nor may a C<#> character be used as the delimiter since it is always