Disallow legacy global UnpatchAll

IPA.Loader/Loader/HarmonyProtector.cs

@@ -1,5 +1,4 @@
 using HarmonyLib;
-using System.Collections.Generic;
 using System.Reflection;
 
 namespace IPA.Loader
@@ -17,6 +16,8 @@ namespace IPA.Loader
         
         public static void Protect(Harmony inst = null)
         {
+            HarmonyGlobalSettings.DisallowLegacyGlobalUnpatchAll = true;
+
             selfAssem = Assembly.GetExecutingAssembly();
             harmonyAssem = typeof(Harmony).Assembly;
 

IPA.Loader/Loader/PluginLoader.cs

@@ -11,11 +11,7 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using System.Text.RegularExpressions;
-using System.Threading.Tasks;
-using Version = SemVer.Version;
-using SemVer;
 using System.Diagnostics.CodeAnalysis;
-using HarmonyLib;
 using System.Diagnostics;
 using IPA.AntiMalware;
 using Hive.Versioning;