ParticleBuilder.hasReceivers shouldnt return true if no players are in the world

Spigot-API-Patches/Expand-World.spawnParticle-API-and-add-Builder.patch

@@ -10,7 +10,7 @@ This adds a new Builder API which is much friendlier to use.
 
 diff --git a/src/main/java/com/destroystokyo/paper/ParticleBuilder.java b/src/main/java/com/destroystokyo/paper/ParticleBuilder.java
 new file mode 100644
-index 00000000..ef07ab3c
+index 00000000..bf4edd07
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/ParticleBuilder.java
 @@ -0,0 +0,0 @@
@@ -96,7 +96,7 @@ index 00000000..ef07ab3c
 +     * @return If this particle is going to be sent to someone
 +     */
 +    public boolean hasReceivers() {
-+        return receivers == null || !receivers.isEmpty();
++        return (receivers == null && !location.getWorld().getPlayers().isEmpty()) || !receivers.isEmpty();
 +    }
 +
 +    /**