[Internal] Remove incorrectly working integration test TestAccLibraryUpdateTransitionFromPluginFw (#4487)

## Changes
<!-- Summary of your changes that are easy to understand -->

As discussed internally

## Tests
<!-- 
How is this tested? Please see the checklist below and also describe any
other relevant tests
-->

- [ ] `make test` run locally
- [ ] relevant change in `docs/` folder
- [ ] covered with integration tests in `internal/acceptance`
- [ ] using Go SDK
- [ ] using TF Plugin Framework

Author: alexott

NEXT_CHANGELOG.md

@@ -23,3 +23,5 @@
  * Refactor UC, SQL and SCIM objects into separate files ([#4477](https://github.com/databricks/terraform-provider-databricks/pull/4477)).
 
 ### Internal Changes
+
+ * Remove incorrectly working integration test `TestAccLibraryUpdateTransitionFromPluginFw` ([#4487](https://github.com/databricks/terraform-provider-databricks/pull/4487)).

internal/providers/pluginfw/products/library/resource_library_acc_test.go

@@ -185,29 +185,3 @@ func TestAccLibraryUpdateTransitionFromSdkV2(t *testing.T) {
 		},
 	)
 }
-
-// Testing the transition from plugin framework to sdkv2.
-func TestAccLibraryUpdateTransitionFromPluginFw(t *testing.T) {
-	acceptance.WorkspaceLevel(t,
-		acceptance.Step{
-			Template: commonClusterConfig + `resource "databricks_library" "new_library" {
-					cluster_id = databricks_cluster.this.id
-					pypi {
-						repo = "https://pypi.org/simple"
-						package = "databricks-sdk"
-					}
-				}
-				`,
-		},
-		acceptance.Step{
-			ProtoV6ProviderFactories: sdkV2FallbackFactory,
-			Template: commonClusterConfig + `resource "databricks_library" "new_library" {
-				cluster_id = databricks_cluster.this.id
-				pypi {
-					package = "networkx"
-				}
-			}
-			`,
-		},
-	)
-}