remove unused imports

Author: xuwei-k

modules/postgres/src/main/scala/doobie/postgres/syntax/syntax.scala

@@ -11,8 +11,6 @@ import doobie.postgres.sqlstate.*
 import doobie.*
 import doobie.util.catchsql.exceptSomeSqlState
 import doobie.util.query.{Query, Query0}
-import doobie.hi.{HPS, HRS, HC}
-import doobie.free.ConnectionIO
 
 class PostgresMonadErrorOps[M[_], A](ma: M[A])(
     implicit ev: MonadError[M, Throwable]

modules/postgres/src/test/scala/doobie/postgres/enums/MyEnum.scala

@@ -6,7 +6,6 @@ package doobie.postgres.enums
 
 import doobie.Meta
 import doobie.postgres.implicits.*
-import doobie.postgres.implicits.arrayOfEnum
 
 // create type myenum as enum ('foo', 'bar') <-- part of setup
 sealed trait MyEnum