Revert "Don't call JS_GC() after js.exec() until new background threads exit"

This reverts commit ed8c30da.

src/sbbs3/exec.cpp

@@ -531,7 +531,6 @@ js_OperationCallback(JSContext *cx)
 	return ret;
 }
 
-extern JSClass js_global_class; // Hurr derr
 int sbbs_t::js_execfile(const char *cmd, const char* startup_dir, JSObject* scope, JSContext* js_cx, JSObject* js_glob)
 {
 	char*                     p;
@@ -555,10 +554,7 @@ int sbbs_t::js_execfile(const char *cmd, const char* startup_dir, JSObject* scop
 	struct js_runq_entry *    rq_head;
 	struct js_runq_entry *    rq_tail;
 	struct js_listener_entry *listeners;
-	global_private_t *gptp;
 
-	if ((gptp = (global_private_t*)js_GetClassPrivate(js_cx, js_glob, &js_global_class)) == NULL)
-		return -1;
 
 	if (js_cx == NULL)
 		js_cx = this->js_cx;
@@ -698,8 +694,6 @@ int sbbs_t::js_execfile(const char *cmd, const char* startup_dir, JSObject* scop
 	js_callback.rq_tail = NULL;
 	listeners = js_callback.listeners;
 	js_callback.listeners = NULL;
-
-	unsigned orig_bgcount = gptp->bg_count;
 	if (!JS_ExecuteScript(js_cx, js_scope, js_script, &rval))
 		result = -1;
 	js_handle_events(js_cx, &js_callback, &terminated);
@@ -748,10 +742,6 @@ int sbbs_t::js_execfile(const char *cmd, const char* startup_dir, JSObject* scop
 		JS_RemoveValueRoot(js_cx, &old_js_exec_path);
 		JS_RemoveValueRoot(js_cx, &old_js_scope);
 	}
-	while (gptp->bg_count > orig_bgcount) {
-		if (sem_wait(&gptp->bg_sem) == 0)
-			gptp->bg_count--;
-	}
 
 	JS_GC(js_cx);