removed some // comments from C files
removed some // comments from C files

svn path=/trunk/kdepim/; revision=147695

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