Revert "Fix curdir"

This reverts commit f76f570.

Author: isuruf

runtime/flang/curdir.c

@@ -19,8 +19,6 @@
 #ifndef _WIN32
 #include <sys/param.h>
 #include <sys/utsname.h>
-#else
-#include <Winsock2.h>
 #endif
 #include <stdlib.h>
 #include "stdioInterf.h"
@@ -119,8 +117,6 @@ void __fort_gethostname(host) char *host;
   }
   strcpy(host, p);
 #else
-  char temp[128] = "";
-  gethostname(host, sizeof(temp));
-  strcpy(host, temp);
+  strcpy(host, "localhost");
 #endif	  
 }