Removed support for clock_gettime_nsec_np()

SDL_GetTicks() was broken and it's not adding any real value here.

include/SDL_config.h.cmake

@@ -191,7 +191,6 @@
 #cmakedefine HAVE_SYSCONF 1
 #cmakedefine HAVE_SYSCTLBYNAME 1
 #cmakedefine HAVE_CLOCK_GETTIME 1
-#cmakedefine HAVE_CLOCK_GETTIME_NSEC_NP 1
 #cmakedefine HAVE_GETPAGESIZE 1
 #cmakedefine HAVE_MPROTECT 1
 #cmakedefine HAVE_ICONV 1

include/SDL_config.h.in

@@ -196,7 +196,6 @@
 #undef HAVE_SYSCONF
 #undef HAVE_SYSCTLBYNAME
 #undef HAVE_CLOCK_GETTIME
-#undef HAVE_CLOCK_GETTIME_NSEC_NP
 #undef HAVE_GETPAGESIZE
 #undef HAVE_MPROTECT
 #undef HAVE_ICONV

include/SDL_config_iphoneos.h

@@ -53,7 +53,6 @@
 #define HAVE_REALLOC    1
 #define HAVE_FREE   1
 #define HAVE_ALLOCA 1
-#define HAVE_CLOCK_GETTIME_NSEC_NP 1
 #define HAVE_GETENV 1
 #define HAVE_SETENV 1
 #define HAVE_PUTENV 1

include/SDL_config_macosx.h

@@ -56,9 +56,6 @@
 #define HAVE_CALLOC 1
 #define HAVE_REALLOC    1
 #define HAVE_FREE   1
-#if MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
-#define HAVE_CLOCK_GETTIME_NSEC_NP 1
-#endif
 #define HAVE_ALLOCA 1
 #define HAVE_GETENV 1
 #define HAVE_SETENV 1