awgtpman: removal of old build flags that broak setting testpoints

We'd dropped an old build flag that was used to determine the element element size for test point numbers.

The testpoint size reverted from 4 bytes to t2, but only in the RPC definition.  As a result, only the first value in an RPC array of testpoints was in the correct position.  Only one testpoint could be specified correctly per test.

I've checked the rest of the code to make sure this was the only remaining use of the build flags.

src/gds/rpc/rtestpoint.x

@@ -18,11 +18,7 @@
 %#include "dtt/rpcinc.h"
 
 /* list of test point */
-#if defined(_ADVANCED_LIGO) && !defined(COMPAT_INITIAL_LIGO)
 typedef unsigned int TP_r<>;
-#else
-typedef unsigned short TP_r<>;
-#endif
 
 /* request result */
 struct resultRequestTP_r {