gtk+3.0: demo related files should not be in the main package
All files from the gtk+3.0-demo
sub package are also in the main gtk+3.0
package.
It seems that in APKBULD
, files are copied to the sub package and never removed from the main one.
Some demo related files are more than 1MB in size, so not having them in the main package provides a good package size reduction.