Remove php_win32_init_gettimeofday declaration

Follow-up of phpGH-15400 (25afbdb).

Author: petk

win32/time.h

@@ -54,10 +54,4 @@ PHPAPI int nanosleep( const struct timespec * rqtp, struct timespec * rmtp );
 
 PHPAPI int usleep(unsigned int useconds);
 
-#ifdef PHP_EXPORTS
-/* This symbols are needed only for the DllMain, but should not be exported
-	or be available when used with PHP binaries. */
-void php_win32_init_gettimeofday(void);
-#endif
-
 #endif