iOS: Encode hex strings in upper case to match with Android behavior (#32)

Author: icedevml

packages/native-hce-module/ios/RTNHCEModuleIOSImpl.swift

@@ -13,13 +13,8 @@ extension StringProtocol {
 }
 
 extension Data {
-  struct HexEncodingOptions: OptionSet {
-    let rawValue: Int
-    static let upperCase = HexEncodingOptions(rawValue: 1 << 0)
-  }
-
-  func hexEncodedString(options: HexEncodingOptions = []) -> String {
-    let format = options.contains(.upperCase) ? "%02hhX" : "%02hhx"
+  func hexEncodedString() -> String {
+    let format = "%02hhX"
     return map { String(format: format, $0) }.joined()
   }
 }