Remove silex service providers from test coverage.
Remove silex service providers from test coverage.

opencfp/opencfp,DallasPHP/opencfp,MidwestPHP/opencfp_mwphp15,jugisahunk/200OK_CFP,pmeth/opencfp,GrUSP/opencfp,MidwestPHP/opencfp_mwphp15,MidwestPHP/opencfp_mwphp15,PHPBenelux/opencfp,OpenWestConference/opencfp,madisonphp/opencfp,monoku/opencfp,OpenWestConference/opencfp,zymsys/opencfp,phphants/opencfp,noahd1/opencfp,DevOpsDaysChicago/opencfp,monoku/opencfp,PHPBenelux/opencfp,mdwheele/opencfp,zymsys/opencfp,DallasPHP/opencfp,madisonphp/opencfp,sunshinephp/opencfp,Acidburn0zzz/opencfp,DevOpsDaysChicago/opencfp,localheinz/opencfp,mdwheele/opencfp,DevOpsDaysChicago/opencfp,monoku/opencfp,phphants/opencfp,localheinz/opencfp,brynary/opencfp,Acidburn0zzz/opencfp,GrUSP/opencfp,MidwestPHP/opencfp_mwphp15,sunshinephp/opencfp,sunshinephp/opencfp,brynary/opencfp,madisonphp/opencfp,noahd1/opencfp,jugisahunk/200OK_CFP,OpenWestConference/opencfp,opencfp/opencfp,zhenqing/opencfp,mdwheele/opencfp,PHPBenelux/opencfp,PHPBenelux/opencfp,phphants/opencfp,Acidburn0zzz/opencfp,zhenqing/opencfp,brynary/opencfp,GrUSP/opencfp,opencfp/opencfp,GrUSP/opencfp,zhenqing/opencfp,OpenWestConference/opencfp,pmeth/opencfp,monoku/opencfp,localheinz/opencfp,pmeth/opencfp,phphants/opencfp,localheinz/opencfp,mdwheele/opencfp,jugisahunk/200OK_CFP,DallasPHP/opencfp,noahd1/opencfp,zymsys/opencfp