Revert "Enable the "limit" param in /api/search"

This reverts commit 3d77685108.

pkg/services/search/handlers.go

@@ -44,7 +44,6 @@ func searchHandler(query *Query) error {
 		IsStarred:    query.IsStarred,
 		OrgId:        query.OrgId,
 		DashboardIds: query.DashboardIds,
-		Limit:        query.Limit,
 	}
 
 	if err := bus.Dispatch(&dashQuery); err != nil {

pkg/services/search/models.go

@@ -42,7 +42,6 @@ type FindPersistedDashboardsQuery struct {
 	UserId       int64
 	IsStarred    bool
 	DashboardIds []int
-	Limit        int
 
 	Result HitList
 }