Remove dependencies on obsolete __ARCH_WANT_SYSCALL_NO_FLAGS syscalls.

(aarch64 kernels only have the newer system calls.)

Also expose the new functionality that's exposed by glibc in our header files.

Change-Id: I45d2d168a03f88723d1f7fbf634701006a4843c5
diff --git a/libc/arch-x86_64/syscalls/inotify_init1.S b/libc/arch-x86_64/syscalls/inotify_init1.S
new file mode 100644
index 0000000..86a6d5f
--- /dev/null
+++ b/libc/arch-x86_64/syscalls/inotify_init1.S
@@ -0,0 +1,18 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(inotify_init1)
+    movl    $__NR_inotify_init1, %eax
+    syscall
+    cmpq    $-MAX_ERRNO, %rax
+    jb      1f
+    negl    %eax
+    movl    %eax, %edi
+    call    __set_errno
+    orq     $-1, %rax
+1:
+    ret
+END(inotify_init1)