Remove GI methods in parentheses from light baking options

[dsnopek]

Presently, on lights, the "Bake Mode" property has 3 options:

• Disabled
• Static (VoxelGI/SDFGI/LightmapGI)
• Dynamic (VoxelGI/SDFGI)

I think this is potentially confusing (it confused me :-)) because it makes it sound like lights marked "Dynamic (VoxelGI/SDFGI)" won't be baked into LightmapGI lightmaps.

However, they are baked into LightmapGI lightmaps, but only the bounced light, not the direct light.

So, in this case, I think it'd be best to just remove the GI methods from the option names, since all the options do apply to all GI methods.

There are a number of other properties with similar options, for example, gi_mode on VisualInstance3D, but in that case I think it's OK because it's true (if marked as "Dynamic (VoxelGI only)" that visual instance won't receive light from LightmapGI). The same goes for the meshes/light_baking option from ResourceImporterScene.

UPDATE: Per @Calinou's suggestion, this PR now removes the GI method names from all light baking options.

[Calinou]

(if marked as "Dynamic (VoxelGI only)" that visual instance won't receive light from LightmapGI).

The dynamic object can still receive indirect light from LightmapGI's dynamic probe system (direct light is always real-time, even for lights marked as Static). As a result, I'd go for removing that hint for GI mode as well.

In general, there are many nuances that short hints can't cover, so it's better to refer people to the documentation to know what will happen with each GI mode exactly.

[dsnopek]

Alright, I've updated the PR to remove the GI method names from all the light baking options

[YuriSizov]

Thanks!

[akien-mga]

Cherry-picked for 4.2.2.