Remove Image size settings from Media & Text options

[tellthemachines]

Description

Follow-up from this discussion. Because images in the Media & Text block always take up 100% of their parent width, changing the image size in the block sidebar has no effect except making the image blurry if a small size is chosen. This setting should be removed as it is effectively useless in this block.

Step-by-step reproduction instructions

1. Add Media & Text block to a post.
2. In the sidebar settings, change the image size.
3. Verify image size doesn't change.

Expected behaviour

As, according to the discussion linked to above, the image in this block should always occupy 100% of its area, I would expect the image size setting to not be available in the sidebar.

Screenshots or screen recording (optional)

[Mamaduka]

Hi, @tellthemachines

I think size settings were added to control image file size. See #24795 (comment).

But I agree, it's a little confusing. Maybe we should add a description or change the label.