Remove availabilities older than the test deployment target

Author: glessard

Tests/FoundationEssentialsTests/DataTests.swift

@@ -1646,7 +1646,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineDataSpan() throws {
         var source = Data()
         var span = source.span
@@ -1663,7 +1662,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineSliceDataSpan() throws {
         let source = Data(0 ... .max)
         let span = source.span
@@ -1672,7 +1670,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineDataMutableSpan() throws {
         var source = Data()
         var span = source.mutableSpan
@@ -1695,7 +1692,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineSliceDataMutableSpan() throws {
         var source = Data(0..<100)
         let count = source.count
@@ -1708,7 +1704,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineDataMutableRawSpan() throws {
         var source = Data()
         var span = source.mutableBytes
@@ -1730,7 +1725,6 @@ private final class DataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func inlineSliceDataMutableRawSpan() throws {
         var source = Data(0..<100)
         let count = source.count
@@ -2388,7 +2382,6 @@ extension DataTests {
 @Suite("Large Data Tests", .serialized)
 struct LargeDataTests {
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func largeSliceDataSpan() throws {
 #if _pointerBitWidth(_64)
         let count = Int(Int32.max)
@@ -2406,7 +2399,6 @@ struct LargeDataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func largeSliceDataMutableSpan() throws {
 #if _pointerBitWidth(_64)
         var count = Int(Int32.max)
@@ -2430,7 +2422,6 @@ struct LargeDataTests {
     }
 
     @Test
-    @available(macOS 10.14.4, iOS 12.2, watchOS 5.2, tvOS 12.2, *)
     func largeSliceDataMutableRawSpan() throws {
 #if _pointerBitWidth(_64)
         var count = Int(Int32.max)