Fix issue2551029: Jinja2 template install error. Remove config.ini from templates to make sure that roundup-admin install writes a new default config.ini based on configuration.py. Did not transfer updates from trunk that enhanced the configuration of backend value and the rdbms section.

{
    "validthis": true,
    "laxcomma" : true,
    "laxbreak" : true,
    "browser"  : true,
    "eqnull"   : true,
    "debug"    : true,
    "devel"    : true,
    "boss"     : true,
    "expr"     : true,
    "asi"      : true
}