kernel: remove obsolete config symbols from 4.4

kernel: remove obsolete config symbols from 4.4

Only remove old symbols for 4.4 since older Kernels might be
removed sooner/later and 4.4 is the next LTS

build tested against:
 omap 4.4 CONFIG_ALL_KMODS
 x86_64

List of enabled & orphaned symbols:

-CONFIG_ARPD=y
-CONFIG_BT_L2CAP=y
-CONFIG_BT_SCO=y
-CONFIG_CAVIUM_OCTEON_HELPER=y
-CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
-CONFIG_DISABLE_DEV_COREDUMP=y
-CONFIG_EXPERIMENTAL=y
-CONFIG_EXT4_FS_XATTR=y
-CONFIG_GENERIC_HARDIRQS=y
-CONFIG_GENERIC_TIME=y
-CONFIG_HOTPLUG=y
-CONFIG_INITRAMFS_COMPRESSION_NONE=y
-CONFIG_INLINE_SPIN_UNLOCK=y
-CONFIG_LEDS_GPIO_OF=y
-CONFIG_LEDS_GPIO_PLATFORM=y
-CONFIG_MFD_SUPPORT=y
-CONFIG_MISC_DEVICES=y
-CONFIG_MTD_CHAR=y
-CONFIG_NETDEV_1000=y
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_PCI=y
-CONFIG_NET_VENDOR_SILICOM=y
-CONFIG_SCSI_MULTI_LUN=y
-CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
-CONFIG_USB_ARCH_HAS_EHCI=y
-CONFIG_USB_ARCH_HAS_OHCI=y
-CONFIG_USB_DEVICEFS=y
-CONFIG_USB_EZUSB=y

Signed-off-by: Dirk Neukirchen <dirkneukirchen@web.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48230 3c298f89-4303-0410-b956-a3cf2f4a3e73