Fixed small memory leak (few hundred bytes per read message).
Fixed small memory leak (few hundred bytes per read message).

Couldn't find any big ones.

svn path=/trunk/kdenetwork/kmail/; revision=44006

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi