Remove getdents from bionic.

Bug: 11156955
Change-Id: I6c306989801be552d85fba8a50dcdc79282fb9d2
diff --git a/libc/arch-x86_64/syscalls/getdents.S b/libc/arch-x86_64/syscalls/__getdents64.S
similarity index 80%
rename from libc/arch-x86_64/syscalls/getdents.S
rename to libc/arch-x86_64/syscalls/__getdents64.S
index 15e0f7e..64f82fd 100644
--- a/libc/arch-x86_64/syscalls/getdents.S
+++ b/libc/arch-x86_64/syscalls/__getdents64.S
@@ -2,7 +2,7 @@
 
 #include <private/bionic_asm.h>
 
-ENTRY(getdents)
+ENTRY(__getdents64)
     movl    $__NR_getdents64, %eax
     syscall
     cmpq    $-MAX_ERRNO, %rax
@@ -12,4 +12,5 @@
     call    __set_errno
 1:
     ret
-END(getdents)
+END(__getdents64)
+.hidden __getdents64