Simplify kernel extension code setting up StructInitInfo

src/digraphs.c

@@ -2274,34 +2274,13 @@ static Int InitLibrary(StructInitInfo* module) {
  *F  InitInfopl()  . . . . . . . . . . . . . . . . . table of init functions
  */
 static StructInitInfo module = {
-#ifdef DIGRAPHSSTATIC
-    .type = MODULE_STATIC,
-#else
-    .type = MODULE_DYNAMIC,
-#endif
+    .type        = MODULE_DYNAMIC,
     .name        = "digraphs",
     .initKernel  = InitKernel,
     .initLibrary = InitLibrary,
-    .postRestore = 0};
-
-#ifndef DIGRAPHSSTATIC
-#if defined(__clang__)
-#pragma clang diagnostic push
-#pragma clang diagnostic ignored "-Wmissing-prototypes"
-#elif defined(__GNUC__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wmissing-prototypes"
-#endif
-StructInitInfo* Init__Dynamic(void) {
-  return &module;
-}
+};
 
-StructInitInfo* Init__digraphs(void) {
+extern StructInitInfo* Init__Dynamic(void);  // prototype to avoid warnings
+StructInitInfo*        Init__Dynamic(void) {
   return &module;
 }
-#if defined(__clang__)
-#pragma clang diagnostic pop
-#elif defined(__GNUC__)
-#pragma GCC diagnostic pop
-#endif
-#endif