treewide: remove kmod-usb-core from DEVICE_PACKAGES

This removes _all_ occurrences of kmod-usb-core from
DEVICE_PACKAGES and similar variables.

This package is pulled as dependency by one of the following
packages in any case:
- kmod-usb-chipidea
- kmod-usb-dwc2
- kmod-usb-ledtrig-usbport
- kmod-usb-ohci
- kmod-usb2
- kmod-usb2-pci
- kmod-usb3

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[remove kmod-usb-core from EnGenius ESR600]
Signed-off-by: David Bauer <mail@david-bauer.net>

target/linux/archs38/generic/profiles/00-default.mk

@@ -7,7 +7,7 @@
 
 define Profile/Default
 	NAME:=Default Profile (all drivers)
-	PACKAGES:= kmod-usb-core kmod-usb2 kmod-ath9k-htc wpad-basic
+	PACKAGES:= kmod-usb2 kmod-ath9k-htc wpad-basic
 endef
 
 define Profile/Default/Description