Statistics Dialog: merge unit name and count labels

Makes it easier for translators to do something specific with this label if needs
be. I remember the reason the count (NUMx) label was moved prior to the name had
to do with language conventions too, so this should alleviate any other such issues.

Also made the name label default size instead of small.

(cherry picked from commit e9f7952)

data/gui/window/statistics_dialog.cfg

@@ -264,19 +264,6 @@
 									[/image]
 								[/column]
 
-								[column]
-									grow_factor = 1
-									border = "all"
-									border_size = 5
-									horizontal_grow = true
-
-									[label]
-										id = "unit_count"
-										definition = "default"
-										linked_group = "unit_count"
-									[/label]
-								[/column]
-
 								[column]
 									grow_factor = 1
 									border = "all"