4 4 2 Remove old Loader Objects from QGPL

If the following objects exist in QGPL they should be removed:

DCXLOAD* Type *DTAARA

DC@LOADERI Type *DTAARA

DC@LOAD* Type *FILE

DCXLOAD* Type *FILE

DCXLOAD* Type *MSGF

PC@LOAD* Type *PGM

DC@PC* Type *PGM

DC@LOAD* Type *PGM

DC@LOAD* TYPE *SRVPGM

That is, the following commands could be used

DLTDTAARA QGPL/DCXLOAD*

DLTDTAARA QGPL/DC@LOADERI

DLTF QGPL/DC@LOAD*

DLTF QGPL/DCXLOAD*

DLTMSGF QGPL/DCXLOAD*

DLTPGM QGPL/PC@LOAD*

DLTPGM QGPL/DC@PC*

DLTPGM QGPL/DC@LOAD*

DLTSRVPGM QGPL/DC@LOAD*