Remove swatch functionality from selected toolbars

This patch removes the swatch display functionality from toolbars where it was deemed confusing and unnecessary. The affected toolbars are those used for the rectangle, circle, star, 3D box, spiral, LPE, eraser, tweak, bucket, pen, pencil and brush tools. The removal aligns the UI consistency and frees up space in the toolbar area.

Before:

After:

addresses: #4898 (comment 1906184507)