Mms: Update Greek translations

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I4281b1fe150d30ee5874023b02af7c54aa08295a
Mms: Fix build warnings

Remove non-existing strings

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ic0c1bcf242e30c3c2d4384eaed4506e66912beeb
Merge "Mms: Update Greek translations" into gingerbread
Merge branch 'gingerbread' of github.com:TeamFun/android_packages_apps_Mms into gingerbread