Fix typo in comment and remove useless ones

Jellyfin.Server.Implementations/ModelConfiguration/UserConfiguration.cs

@@ -12,14 +12,10 @@ namespace Jellyfin.Server.Implementations.ModelConfiguration
         /// <inheritdoc/>
         public void Configure(EntityTypeBuilder<User> builder)
         {
-            // Collations
-
             builder
                 .Property(user => user.Username)
                 .UseCollation("NOCASE");
 
-            // Delete behavior
-
             builder
                 .HasOne(u => u.ProfileImage)
                 .WithOne()
@@ -52,8 +48,6 @@ namespace Jellyfin.Server.Implementations.ModelConfiguration
                 .WithOne()
                 .OnDelete(DeleteBehavior.Cascade);
 
-            // Indexes
-
             builder
                 .HasIndex(entity => entity.Username)
                 .IsUnique();