ath79: remove ath10k drivers from Archer C7 v1 profile

Ath10k packages were removed from ar71xx in master in commit
34113999ef43 ("ar71xx: Remove ath10k packages from archer-c7-v1 (fixes
FS#1743)") but ath79 in master and the 19.07 branch still suffer from
the issue.

Signed-off-by: Stijn Segers <[email protected]>
[commit description facelift]
Signed-off-by: Petr Štetiar <[email protected]>

target/linux/ath79/image/generic-tp-link.mk

@@ -123,7 +123,7 @@ define Device/tplink_archer-c7-v1
   ATH_SOC := qca9558
   DEVICE_MODEL := Archer C7
   DEVICE_VARIANT := v1
-  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport kmod-ath10k-ct ath10k-firmware-qca988x-ct
+  DEVICE_PACKAGES := kmod-usb2 kmod-usb-ledtrig-usbport
   TPLINK_HWID := 0x75000001
   SUPPORTED_DEVICES += archer-c7
 endef