libusb: remove stale patch

this patch fixes a bug when using uclibc on MIPS. The bug does not exist when
using musl, so drop the fix.

Signed-off-by: John Crispin <john@phrozen.org>

package/libs/libusb/patches/001-timerfd.patch

@@ -1,33 +0,0 @@
-commit cadb77d99e314e42c3eb02d016e9d90136ec6959
-Author: Alexander Gordeev <lasaine@lvk.cs.msu.su>
-Date:   Thu Jan 27 06:39:16 2011 +0300
-
-    fix timerfd initialization
-    
-    sys/timerfd.h defines TFD_NONBLOCK as 0x800 but in kernel TFD_NONBLOCK
-    is an alias for O_NONBLOCK which is defined in arch-specific fcntl.h.
-    While it's still 0x800 for most of archs but for mips it's 0x80. So
-    timerfd_create(..., TFD_NONBLOCK) returns -EINVAL because of that. Fix
-    this by using O_NONBLOCK instead.
-    
-    Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
-
---- a/libusb/io.c
-+++ b/libusb/io.c
-@@ -32,6 +32,7 @@
- #include <sys/time.h>
- #endif
- #ifdef USBI_TIMERFD_AVAILABLE
-+#include <fcntl.h>
- #include <sys/timerfd.h>
- #endif
- 
-@@ -1141,7 +1142,7 @@ int usbi_io_init(struct libusb_context *
- 
- #ifdef USBI_TIMERFD_AVAILABLE
- 	ctx->timerfd = timerfd_create(usbi_backend->get_timerfd_clockid(),
--		TFD_NONBLOCK);
-+		O_NONBLOCK);
- 	if (ctx->timerfd >= 0) {
- 		usbi_dbg("using timerfd for timeouts");
- 		r = usbi_add_pollfd(ctx, ctx->timerfd, POLLIN);