Revert "Switch to using typeahead for user search"

This reverts commit a3e11e3272.

src/experimental/parser/user.nim

@@ -85,10 +85,3 @@ proc parseUsers*(json: string; after=""): Result[User] =
     let raw = json.fromJson(seq[RawUser])
     for user in raw:
       result.content.add user.toUser
-
-proc parseTypeahead*(json: string): Result[User] =
-  result = Result[User](beginning: true)
-
-  let raw = json.fromJson(Typeahead)
-  for user in raw.users:
-    result.content.add user.toUser

src/experimental/types/user.nim

@@ -42,6 +42,3 @@ type
 
   Color* = object
     red*, green*, blue*: int
-
-  Typeahead* = object
-    users*: seq[RawUser]