HBASE-25977 Remove 2.2.7 from download page (#3361)
HBASE-25977 Remove 2.2.7 from download page (#3361)

Signed-off-by: Duo Zhang <ca823f7b4f21a31b6ef7892c1f90d53103f0d135@apache.org>
Apache9/hbase,apurtell/hbase,mahak/hbase,Apache9/hbase,mahak/hbase,ndimiduk/hbase,ndimiduk/hbase,apurtell/hbase,ndimiduk/hbase,ndimiduk/hbase,ndimiduk/hbase,mahak/hbase,Apache9/hbase,Apache9/hbase,apurtell/hbase,Apache9/hbase,apurtell/hbase,mahak/hbase,Apache9/hbase,mahak/hbase,Apache9/hbase,Apache9/hbase,apurtell/hbase,mahak/hbase,ndimiduk/hbase,mahak/hbase,apurtell/hbase,ndimiduk/hbase,mahak/hbase,apurtell/hbase,Apache9/hbase,apurtell/hbase,apurtell/hbase,ndimiduk/hbase,ndimiduk/hbase,mahak/hbase,ndimiduk/hbase,apurtell/hbase,mahak/hbase,Apache9/hbase