dev-haskell/concurrent-extra: bump up to 0.7.0.9

Package-Manager: portage-2.2.14
Bump hashable to 1.2.3.0
Bump text to 1.2.0.3
ghc-package.eclass: remove unused 'ghc-makeghcilib'

Was used only for old pre-cabal 'gtk2hs' and 'hsshellscript'.

Signed-off-by: Sergei Trofimovich <siarheit@google.com>