[FIX] sap.m.Dialog: Memory leak is fixed
[FIX] sap.m.Dialog: Memory leak is fixed

Fixes: https://github.com/SAP/openui5/issues/1112
BCP: 1680238726

Change-Id: I4590371fd769fe875d0dccedddedbd820f1d7ddf

olirogers/openui5,olirogers/openui5,SAP/openui5,cschuff/openui5,SAP/openui5,SQCLabs/openui5,nzamani/openui5,cschuff/openui5,SQCLabs/openui5,SAP/openui5,nzamani/openui5,nzamani/openui5,SQCLabs/openui5,SAP/openui5,olirogers/openui5,cschuff/openui5