Simplify the enabling of all the optional interrupt counters for debug

src/sbbs3/dosxtrn/dosxtrn.c

@@ -46,6 +46,12 @@
 #define DOSXTRN_REVISION	26
 #define VDD_FILENAME	"sbbsexec.dll"
 
+#if 0
+#define DEBUG_INT_CALLS
+#define DEBUG_DOS_CALLS
+#define DEBUG_FOSSIL_CALLS
+#endif
+
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