fix: Disable promo for now (#7075)

There are still some important issues

base/src/com/google/idea/blaze/base/qsync/QuerySyncPromo.java

@@ -37,7 +37,7 @@
 public class QuerySyncPromo {
 
   private static final IntExperiment PROMO_DISPLAY_DELAY_MINUTES =
-      new IntExperiment("query.sync.promo.delay.minutes", 10);
+      new IntExperiment("query.sync.promo.delay.minutes", 0);
 
   private final Project project;
   private final QuerySyncManager querySyncManager;