force delete the ABAP interfaces and classes

Question :
 Try to delete ABAP interface and classes, get the error message below
"You cannot perform this action in modification/enhancement mode"

Solution for ABAP interface deletion.
Run ABAP function module OO_INTERFACE_DELETE with t-code SE37.
Note: input X for options  COMMIT and FORCE

Solution for ABAP class deletion.
Run ABAP function module OO_CLASS_DELETE with t-code SE37.
Note: input X for options  COMMIT and FORCE