Reverted memrchr() patch, because it is broken on linux 64-bit

Author: dstogov

Zend/zend_operators.h

@@ -25,7 +25,6 @@
 #include <errno.h>
 #include <math.h>
 #include <assert.h>
-#include <string.h>
 
 #ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
@@ -240,9 +239,6 @@ zend_memnstr(char *haystack, char *needle, int needle_len, char *end)
 	return NULL;
 }
 
-#ifdef HAVE_MEMRCHR
-# define zend_memrchr(s,c,n) memrchr(s,c,n)
-#else
 static inline void *zend_memrchr(const void *s, int c, size_t n)
 {
 	register unsigned char *e;
@@ -259,7 +255,6 @@ static inline void *zend_memrchr(const void *s, int c, size_t n)
 
 	return NULL;
 }
-#endif
 
 BEGIN_EXTERN_C()
 ZEND_API int increment_function(zval *op1);

configure.in

@@ -515,7 +515,6 @@ lchown \
 lrand48 \
 memcpy \
 memmove \
-memrchr \
 mkstemp \
 mmap \
 nl_langinfo \