asynctest: don't depend on apps

Remove unnecessary include of apps.h. Tests shouldn't take a
dependency on apps. In this case, there is no dependency, the include
is unnecessary.
Reviewed-by: NRich Salz <rsalz@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

test/asynctest.c

@@ -15,7 +15,6 @@
 #include <string.h>
 #include <openssl/async.h>
 #include <openssl/crypto.h>
-#include <../apps/apps.h>
 
 static int ctr = 0;
 static ASYNC_JOB *currjob = NULL;