Revert "Migrate scala.Seq to strawman.collection.Seq"

This reverts commit 71dab7c6036ec8b4caf732fc0f0bbec525796629.

Author: julienrf

output/src/main/scala/fix/Collectionstrawman_v0.scala

@@ -1,7 +1,7 @@
 package fix
 
 import scala.Predef.{ augmentString => _, genericArrayOps => _, intArrayOps => _, wrapString => _, _ }
-import strawman.collection.{ Seq, arrayToArrayOps, stringToStringOps }
+import strawman.collection.{ arrayToArrayOps, stringToStringOps }
 import strawman.collection.immutable.{ ::, HashMap, LazyList, List, Map, Nil, Range, Vector }
 import strawman.collection.immutable.LazyList.#::
 import strawman.collection.mutable.ArrayBuffer

rules/src/main/scala/fix/Collectionstrawman_v0.scala

@@ -106,7 +106,6 @@ case class Collectionstrawman_v0(index: SemanticdbIndex)
       s("Traversable", Some("Iterable")),
       "scala.Iterable" -> "strawman.collection.Iterable",
       "scala.Traversable" -> "strawman.collection.Iterable",
-      "scala.Seq" -> "strawman.collection.Seq",
       "scala.`#::`" -> "strawman.collection.immutable.LazyList.`#::`",
       s("Vector"),
       i("Vector"),