Stop scaffolding DbSet initializers

Fixes #26877

Author: bricelam

src/EFCore.Design/Scaffolding/Internal/CSharpDbContextGenerator.cs

@@ -83,9 +83,7 @@ public virtual string TransformText()
             this.Write(this.ToStringHelper.ToStringWithCulture(entityType.Name));
             this.Write("> ");
             this.Write(this.ToStringHelper.ToStringWithCulture(entityType.GetDbSetName()));
-            this.Write(" { get; set; }");
-            this.Write(this.ToStringHelper.ToStringWithCulture(Options.UseNullableReferenceTypes ? " = null!;" : ""));
-            this.Write("\r\n\r\n");
+            this.Write(" { get; set; }\r\n\r\n");
 
     }
 

src/EFCore.Design/Scaffolding/Internal/CSharpDbContextGenerator.tt

@@ -62,7 +62,7 @@ public partial class <#= Options.ContextName #> : DbContext
     foreach (var entityType in Model.GetEntityTypes().Where(e => !e.IsSimpleManyToManyJoinEntityType()))
     {
 #>
-    public virtual DbSet<<#= entityType.Name #>> <#= entityType.GetDbSetName() #> { get; set; }<#= Options.UseNullableReferenceTypes ? " = null!;" : "" #>
+    public virtual DbSet<<#= entityType.Name #>> <#= entityType.GetDbSetName() #> { get; set; }
 
 <#
     }