Remove unused SIZEOF_SHORT (#13034)

Author: petk

build/php.m4

@@ -2419,7 +2419,6 @@ dnl
 dnl PHP_CHECK_STDINT_TYPES
 dnl
 AC_DEFUN([PHP_CHECK_STDINT_TYPES], [
-  AC_CHECK_SIZEOF([short])
   AC_CHECK_SIZEOF([int])
   AC_CHECK_SIZEOF([long])
   AC_CHECK_SIZEOF([long long])

win32/build/config.w32.h.in

@@ -88,7 +88,6 @@
 #define HAVE_GETPID 1
 #define HAVE_LIBM 1
 #undef HAVE_RINT
-#define SIZEOF_SHORT 2
 /* int and long are still 32bit in 64bit compiles */
 #define SIZEOF_INT 4
 #define SIZEOF_LONG 4