Remove modulate/albedo mix changes from Distance Fade example in Decals (#1054)

3d/decals/test.tscn

@@ -634,8 +634,6 @@ transform = Transform3D(-4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, 0, 0,
 extents = Vector3(0.45, 1, 0.45)
 texture_albedo = ExtResource("13_ef2mf")
 texture_normal = ExtResource("14_je5ga")
-modulate = Color(1, 8, 20, 1)
-albedo_mix = 0.05
 distance_fade_enabled = true
 distance_fade_begin = 2.5
 distance_fade_length = 0.0
@@ -645,8 +643,6 @@ transform = Transform3D(-4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, -4.371
 extents = Vector3(0.45, 1, 0.45)
 texture_albedo = ExtResource("13_ef2mf")
 texture_normal = ExtResource("14_je5ga")
-modulate = Color(1, 8, 20, 1)
-albedo_mix = 0.05
 distance_fade_enabled = true
 distance_fade_begin = 2.5
 distance_fade_length = 4.0
@@ -656,8 +652,6 @@ transform = Transform3D(-4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, -8.742
 extents = Vector3(0.45, 1, 0.45)
 texture_albedo = ExtResource("13_ef2mf")
 texture_normal = ExtResource("14_je5ga")
-modulate = Color(1, 8, 20, 1)
-albedo_mix = 0.05
 distance_fade_enabled = true
 distance_fade_begin = 2.5