ticket:10320 clean up the branches dir

git-svn-id: http://source.icu-project.org/repos/icu/icu@35899 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10320 clean up the branches dir

git-svn-id: http://source.icu-project.org/repos/icu/icu@35900 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10320 clean up the branches dir

git-svn-id: http://source.icu-project.org/repos/icu/icu@35901 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10320 clean up the branches dir

git-svn-id: http://source.icu-project.org/repos/icu/icu@35902 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10320 clean up the branches dir

git-svn-id: http://source.icu-project.org/repos/icu/icu@35903 251d0590-4201-4cf1-90de-194747b24ca1