how to remove drivers from VMware

~ # esxcli software vib list | grep Emulex
elxnet                         10.0.783.13-1OEM.550.0.0.1331820       Emulex    VMwareCertified   2015-02-27
ima-be2iscsi                   10.0.727.4401-1OEM.550.0.0.1331820     Emulex    VMwareCertified   2015-02-27
lpfc                           10.0.727.44-1OEM.550.0.0.1331820       Emulex    VMwareCertified   2015-02-27
scsi-be2iscsi                  10.0.727.4401-1OEM.550.0.0.1331820     Emulex    VMwareCertified   2015-02-27
scsi-lpfc820                   10.0.727.24-1OEM.500.0.0.472560        Emulex    VMwareCertified   2015-02-27
~ #
~ #
~ # esxcli software vib list | grep QLogic
ima-qla4xxx                    500.2.01.31-1vmw.0.3.100400            QLogic    VMwareCertified   2015-02-27
net-qlcnic                     5.5.164-1OEM.550.0.0.1198611           QLogic    VMwareCertified   2015-02-27
qlnativefc                     1.1.7.0-1OEM.550.0.0.1198610           QLogic    VMwareCertified   2015-02-27
scsi-qla2xxx                   934.5.29.0-1OEM.500.0.0.472560         QLogic    VMwareCertified   2015-02-27
scsi-qla4xxx                   634.55.20.0-1OEM.550.0.0.1198610       QLogic    VMwareCertified   2015-02-27
~ #
~ #
~ # esxcli software vib remove -n scsi-lpfc820
Removal Result
   Message: The update completed successfully, but the system needs to be rebooted for the changes to be effective.
   Reboot Required: true
   VIBs Installed:
   VIBs Removed: Emulex_bootbank_scsi-lpfc820_10.0.727.24-1OEM.500.0.0.472560
   VIBs Skipped:
~ # esxcli software vib remove -n scsi-qla2xxx
Removal Result
   Message: The update completed successfully, but the system needs to be rebooted for the changes to be effective.
   Reboot Required: true
   VIBs Installed:
   VIBs Removed: QLogic_bootbank_scsi-qla2xxx_934.5.29.0-1OEM.500.0.0.472560
   VIBs Skipped:
~ #