Allow OPENSSL_NO_SOCK in e_os.h even for non-Windows/DOS platforms

UEFI needs this too. Don't keep it only in the Windows/DOS ifdef block.
Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>

e_os.h

@@ -460,10 +460,7 @@ extern int kbhit(void);
 # endif
 
 # ifdef USE_SOCKETS
-#  if defined(WINDOWS) || defined(MSDOS)
-      /* windows world */
-
-#   ifdef OPENSSL_NO_SOCK
+#  ifdef OPENSSL_NO_SOCK
 #    define OpenSSL_Write(a,b,c)       (-1)
 #    define OpenSSL_Read(a,b,c)        (-1)
 #   elif !defined(__DJGPP__)