package/libiio: drop 'from' in comment

Drop 'from' in comment of Config.in which was added by commit
00deb6a7c11440766767cc07800661e8067df474

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 52b3b3661c336693a0d23cb95bde2f258ec176b8)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libiio/Config.in

@@ -32,7 +32,7 @@ config BR2_PACKAGE_LIBIIO_NETWORK_BACKEND
 config BR2_PACKAGE_LIBIIO_USB_BACKEND
 	bool "USB backend"
 	default y
-	depends on BR2_TOOLCHAIN_HAS_THREADS # from libusb
+	depends on BR2_TOOLCHAIN_HAS_THREADS # libusb
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libusb
 	select BR2_PACKAGE_LIBIIO_XML_BACKEND
 	select BR2_PACKAGE_LIBUSB