Removed the global lock

src/Ombi.Core/Authentication/OmbiUserManager.cs

@@ -158,7 +158,7 @@ namespace Ombi.Core.Authentication
                     if (!email.Equals(result.User?.Email))
                     {
                         user.Email = result.User?.Email;
-                        await GlobalMutex.Lock(async () => await UpdateAsync(user));
+                        await UpdateAsync(user);
                     }
 
                     return true;

src/Ombi.Helpers/GlobalMutex.cs

@@ -1,38 +0,0 @@
-using System;
-using System.Threading;
-
-namespace Ombi.Helpers
-{
-    public static class GlobalMutex
-    {
-        public static T Lock<T>(Func<T> func)
-        {
-            const string mutexId = "Global\\OMBI";
-
-            using (var mutex = new Mutex(false, mutexId, out var __))
-            {
-                var hasHandle = false;
-                try
-                {
-                    try
-                    {
-                        hasHandle = mutex.WaitOne(5000, false);
-                        if (hasHandle == false)
-                            throw new TimeoutException("Timeout waiting for exclusive access");
-                    }
-                    catch (AbandonedMutexException)
-                    {
-                        hasHandle = true;
-                    }
-
-                    return func();
-                }
-                finally
-                {
-                    if (hasHandle)
-                        mutex.ReleaseMutex();
-                }
-            }
-        }
-    }
-}