hoon: remove $plat
$plat was a type of $plot added in
plots are no longer a thing, so
neither should be plats.
== ::
+$ pica (pair ? cord) :: & prose, | code
+$ palo (pair vein opal) :: wing trace, match
-+$ plat ::
- $? %hoon ::
- %type ::
- %nock ::
- %tank ::
- == ::
+$ pock (pair axis nock) :: changes
+$ port (each palo (pair type nock)) :: successful match
+$ spec :: structure definition
