Revert "Update DatabaseManagementSystemChangeStep.cs"

This reverts commit 608bd47e3a.

framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/Building/Steps/DatabaseManagementSystemChangeStep.cs

@@ -91,18 +91,13 @@ public class DatabaseManagementSystemChangeStep : ProjectBuildPipelineStep
 
     private void ChangeUseSqlServer(ProjectBuildContext context, string newUseMethodForEfModule, string newUseMethodForDbContext = null)
     {
-        var oldUseMethod = "UseSqlServer";
-
-        if (newUseMethodForEfModule.IsNullOrWhiteSpace())
-        {
-            newUseMethodForEfModule = oldUseMethod;
-        }
-
-        if (newUseMethodForDbContext.IsNullOrWhiteSpace())
+        if (newUseMethodForDbContext == null)
         {
             newUseMethodForDbContext = newUseMethodForEfModule;
         }
 
+        var oldUseMethod = "UseSqlServer";
+
         var efCoreModuleClass = context.Files.First(f => f.Name.EndsWith("EntityFrameworkCoreModule.cs", StringComparison.OrdinalIgnoreCase));
         efCoreModuleClass.ReplaceText(oldUseMethod, newUseMethodForEfModule);