Change: Don't measure group name widths in company livery window. (#14291)

Measuring the name width did not also take account of indentation levels so didn't prevent cropping, and the window can be resized anyway.

This avoids a potential bottleneck due to layouting group names if there are a lot of groups present.

src/company_gui.cpp

@@ -750,13 +750,6 @@ public:
 					d = maxdim(d, GetStringBoundingBox(STR_LIVERY_DEFAULT + scheme));
 				}
 
-				/* And group names */
-				for (const Group *g : Group::Iterate()) {
-					if (g->owner == this->window_number) {
-						d = maxdim(d, GetStringBoundingBox(GetString(STR_GROUP_NAME, g->index)));
-					}
-				}
-
 				size.width = std::max(size.width, 5 + d.width + padding.width);
 				break;
 			}