various: cleanup unnecessary sigpams

pkg/arvo/app/chat-hook.hoon

@@ -82,7 +82,6 @@
     =|  cards=(list card)
     |-
     ?:  ?=(%3 -.old)
-       ~&  cards
       [cards this(state old)]
     ?:  ?=(%2 -.old)
       =.  cards

pkg/arvo/app/group-store.hoon

@@ -132,7 +132,6 @@
         (~(uni in members) group)
       ?>  ?=(^ pax)
       =/  rid=resource
-        ~&  t.pax
         (resource-from-old-path t.pax)
       =/  =tags
         (~(put ju *tags) %admin entity.rid)

pkg/arvo/app/metadata-store.hoon

@@ -120,7 +120,6 @@
       %-  ~(run in indices)
       |=  [=group-path =app-path]
       :-  (new-group-path group-path)
-      ~&  app
       ?.  =(%chat app)
          app-path
       (new-app-path app-path)

pkg/arvo/lib/group-store.hoon

@@ -44,9 +44,7 @@
   |*  map=(map path *)
   =/  keys=(list path)
     (skim ~(tap in ~(key by map)) |=(=path =('~' (snag 0 path))))
-  ~&  keys
   |-
-  ~&  map
   ?~  keys
     map
   =*  key  i.keys
@@ -331,7 +329,6 @@
     ^-  $-(json ^update)
     |=  jon=json
     ^-  ^update
-    =-  ~&  -  -
     %.  jon
     %-  of
     :~

pkg/arvo/lib/push-hook.hoon

@@ -164,7 +164,6 @@
       ?.  ?=(%store i.t.t.wire)
         (on-agent:def wire sign)
       ?+   -.sign  (on-agent:def wire sign)
-        %watch-ack  ~&  sign  [~ this]
         %kick  [~[watch-store:hc] this]
       ::
           %fact