Patch 16021147: CPUAPR2013: Confirm Post Install Step

Hi,
We have applied the patch 16021147  in read me can you please explain the following below steps:

Section 4 Installing CPUApr2013 into the Middle Tier Home

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3. Run the 16021147/remove_demo.sh script to remove vulnerable Oracle HTTP Server and JAZN demos only if CPUApr2013 or later has not been previously applied:

sh remove_demo.sh

This step is only needed if you have custom applications that depend on UIX libraries in non-default locations. This patch installs UIX libraries in the Fusion Middleware default locations, $ORACLE_HOME/jlib and $ORACLE_HOME/j2ee/home/applications/ascontrol/ascontrol/. If you have applications that are dependent on UIX libraries in other locations, then you must execute the following step to ensure the new UIX libraries which include security fixes are also installed to these custom locations.