Remove availabilities older than the deployment target

Author: glessard

Sources/FoundationEssentials/Data/Data.swift

@@ -2204,7 +2204,6 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
     }
 
     @abi(var _aeic_bytes: RawSpan)
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     @_alwaysEmitIntoClient
     public var bytes: RawSpan {
         @lifetime(borrow self)
@@ -2238,7 +2237,6 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
     internal var _abi_compatibility_bytes: RawSpan { bytes }
 
     @abi(var _aeic_span: Span<UInt8>)
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     @_alwaysEmitIntoClient
     public var span: Span<UInt8> {
         @lifetime(borrow self)
@@ -2254,7 +2252,6 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
     internal var _abi_compatibility_span: Span<UInt8> { span }
 
     @abi(var _aeic_mutableBytes: MutableRawSpan)
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     @_alwaysEmitIntoClient
     public var mutableBytes: MutableRawSpan {
         @lifetime(&self)
@@ -2288,7 +2285,6 @@ public struct Data : Equatable, Hashable, RandomAccessCollection, MutableCollect
     internal var _abi_compatibility_mutableBytes: MutableRawSpan { mutating get { mutableBytes } }
 
     @abi(var _aeic_mutableSpan: MutableSpan<UInt8>)
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     @_alwaysEmitIntoClient
     public var mutableSpan: MutableSpan<UInt8> {
         @lifetime(&self)