Use Dynamic GI mode for moving objects in LightmapGI probe influence …

…benchmark

This is required for lightmap probes to affect it.

LightmapProbe nodes that were created at runtime were also removed,
as the baked lightmap already contains generated probes and placing
probes at runtime has no effect if lightmaps aren't baked to include
those new probes.

benchmarks/rendering/lightmap_probe_influence.gd

@@ -26,12 +26,6 @@ class TestScene:
 		var lightmap := LightmapGI.new()
 		lightmap.light_data = load("res://supplemental/sponza.lmbake")
 		$Sponza.add_child(lightmap)
-		var half_probes := NUMBER_OF_PROBES / 2
-		for i in NUMBER_OF_PROBES:
-			var probe := LightmapProbe.new()
-			probe.position.y = 1
-			probe.position.z = i - half_probes
-			$Sponza.add_child(probe)
 
 		var meshes: Array[PrimitiveMesh] = [
 			BoxMesh.new(),
@@ -43,6 +37,7 @@ class TestScene:
 		var half_objects := NUMBER_OF_OBJECTS / 2
 		for i in NUMBER_OF_OBJECTS:
 			var ins := MeshInstance3D.new()
+			ins.gi_mode = GeometryInstance3D.GI_MODE_DYNAMIC
 			ins.mesh = meshes[i % meshes.size()]
 			ins.position.y = 1
 			ins.position.z = i - half_objects