rpi-firmware: remove no longer used BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/rpi-firmware/Config.in

@@ -45,15 +45,4 @@ config BR2_PACKAGE_RPI_FIRMWARE_BOOT
 	default "_x"    if BR2_PACKAGE_RPI_FIRMWARE_X
 	default "_cd"   if BR2_PACKAGE_RPI_FIRMWARE_CD
 
-config BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS
-	bool "Install Device Tree Blobs (DTBs)"
-	help
-	  Say 'y' here if you want to boot your kernel that has support
-	  for the device tree.
-
-	  Note that the defconfig files in the Raspberry Pi fork of the
-	  Linux kernel do not enable support for the Device Tree. You'll
-	  have to provide your own Linux config or defconfig file with
-	  device tree enabled, to make use of those DTBs.
-
 endif # BR2_PACKAGE_RPI_FIRMWARE