Drop no longer needed patch to <sys/user.h>

ndk-patches/sys-user.h.patch

@@ -1,17 +0,0 @@
-diff -u -r /home/fornwall/lib/android-ndk/platforms/android-21/arch-arm64/usr/include/sys/user.h ./usr/include/sys/user.h
---- /home/fornwall/lib/android-ndk/platforms/android-21/arch-arm64/usr/include/sys/user.h	2014-12-08 21:59:41.000000000 -0500
-+++ ./usr/include/sys/user.h	2016-01-08 20:08:08.327228220 -0500
-@@ -99,6 +99,13 @@
-   int u_debugreg[8];
- };
- 
-+/* Needed by binutils on x86 */
-+/* http://osxr.org/android/source/bionic/libc/kernel/arch-x86/asm/user_32.h#0089 */
-+#define NBPG PAGE_SIZE
-+#define UPAGES 1
-+#define HOST_TEXT_START_ADDR (u.start_code)
-+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
-+
- #elif defined(__x86_64__)
- 
- struct user_fpregs_struct {