[stdlib] fix availability annotation

glessard · glessard · commit 53db35c80f33 · 2021-07-23T13:40:19.000-06:00
diff --git a/stdlib/public/core/MutableCollection.swift b/stdlib/public/core/MutableCollection.swift
@@ -283,7 +283,6 @@ extension MutableCollection {
   }
 }
 
-@available(SwiftStdlib 9999, *)
 extension MutableCollection where SubSequence == Slice<Self> {
 
   /// Accesses a contiguous subrange of the collection's elements.

Original file line number	Diff line number	Diff line change
`@@ -283,7 +283,6 @@ extension MutableCollection {`
`283`	`283`	`}`
`284`	`284`	`}`
`285`	`285`
`286`		`-@available(SwiftStdlib 9999, *)`
`287`	`286`	`extension MutableCollection where SubSequence == Slice<Self> {`
`288`	`287`
`289`	`288`	`/// Accesses a contiguous subrange of the collection's elements.`