Qt metrics v0.18: Removed Autotest name encoding ("ftp" and "http")

The demo web server needed an encode-decode mechanism to pass strings
"ftp" or "http" correctly in URL with the HTML GET method. Removed
this mechanism now because the target testresults server seems not to
require this.

Change-Id: I6b5ce4f41d8c411fcf4d4e025483b1f7164d7204
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>