Remove Netware and OS/2

Reviewed-by: Richard Levitte <levitte@openssl.org>
diff --git a/apps/speed.c b/apps/speed.c
index b6843ec..230ed62 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -91,10 +91,6 @@
 # include OPENSSL_UNISTD
 #endif
 
-#ifndef OPENSSL_SYS_NETWARE
-# include <signal.h>
-#endif
-
 #if defined(_WIN32)
 # include <windows.h>
 #endif
@@ -165,7 +161,7 @@
 #include <openssl/modes.h>
 
 #ifndef HAVE_FORK
-# if defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_NETWARE)
+# if defined(OPENSSL_SYS_VMS) || defined(OPENSSL_SYS_WINDOWS)
 #  define HAVE_FORK 0
 # else
 #  define HAVE_FORK 1