【CentOS6.3精简】这些驱动可以安全删除吗？

系统更换为64位CentOS6.3后，发现默认安装了好多驱动包，其中有不少都是无线网卡驱动，删了一部分后重启貌似没什么问题，大家一起探讨下，这些软件包能安全删除吗？
#cat /var/log/yum.log
Apr 22 16:23:15 Erased: dhclient
Apr 22 16:23:15 Erased: dhcp-common
Apr 22 16:42:15 Erased: ipw2100-firmware
Apr 22 16:43:28 Erased: ipw2200-firmware
Apr 22 16:44:17 Erased: iwl5150-firmware
Apr 22 16:45:18 Erased: iwl6050-firmware
Apr 22 16:46:27 Erased: iwl100-firmware
Apr 22 16:47:03 Erased: iwl6000g2a-firmware
Apr 22 16:47:32 Erased: iwl6000-firmware
Apr 22 16:48:14 Erased: iwl1000-firmware
Apr 22 16:51:34 Erased: rt61pci-firmware

# rpm -qa | grep firmware
kernel-firmware-2.6.32-279.el6.noarch
iwl5000-firmware-8.83.5.1_1-1.el6_1.1.noarch
ivtv-firmware-20080701-20.2.noarch
xorg-x11-drv-ati-firmware-6.14.2-9.el6.noarch
atmel-firmware-1.3-7.el6.noarch
iwl4965-firmware-228.61.2.24-2.1.el6.noarch
iwl3945-firmware-15.32.2.9-4.el6.noarch
rt73usb-firmware-1.8-7.el6.noarch
ql23xx-firmware-3.03.27-3.1.el6.noarch
bfa-firmware-3.0.0.0-1.el6.noarch
aic94xx-firmware-30-2.el6.noarch
ql2400-firmware-5.06.05-1.el6.noarch
ql2100-firmware-1.19.38-3.1.el6.noarch
libertas-usb8388-firmware-5.110.22.p23-3.1.el6.noarch
ql2500-firmware-5.06.05-1.el6.noarch
zd1211-firmware-1.4-4.el6.noarch
ql2200-firmware-2.02.08-3.1.el6.noarch