Revert "Implemented fix for multiple dialog scrolling issue"

This reverts commit 42c4136.

Author: ArgoZhang

src/BootstrapBlazor.Server/Components/Pages/TestScrollDialog.razor

@@ -85,10 +85,6 @@
 .modal-multiple .modal-dialog {
     position: fixed;
     inset: 0;
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    padding: var(--bs-modal-margin, 0.5rem);
 
     &:last-child:before {
         content: "";
@@ -98,19 +94,6 @@
         opacity: 0.3;
         pointer-events: auto;
     }
-
-    // Ensure scrolling works for multiple dialogs by fixing the modal-content sizing
-    .modal-content {
-        max-height: calc(100vh - var(--bs-modal-margin, 0.5rem) * 2);
-        overflow: hidden;
-        display: flex;
-        flex-direction: column;
-    }
-
-    .modal-body {
-        overflow-y: auto;
-        flex: 1 1 auto;
-    }
 }
 
 .modal-multiple ~ .modal-backdrop {