Select Project ? Project Properties... to display the Project Properties window.

Select the *CONFIGURATION group in the List of Entries pane.

Right-click on the *Config setting to be removed and select Delete.

This deletes the specified group from the CONFIGURATION group. The group is also removed from every build target configuration group for the project.

Select File ? Save and Close to regenerate the makefile(s) for the project, and close the Project Properties window.

Select Tools ? Build... to rebuild the application.