remove unnecessary gitignore file
remove unnecessary gitignore file

digital-flowers/sharp-win32,philip8728/sharp,mdimitrov/sharp,kevinsawicki/sharp,chrisriley/sharp,cmtt/sharp,leiyangyou/sharp,chrisriley/sharp,philip8728/sharp,dtest/sharp,mhirsch/sharp,dtest/sharp,lovell/sharp,brandonaaron/sharp,mhirsch/sharp,digital-flowers/sharp-win32,pporada-gl/sharp,brandonaaron/sharp,pporada-gl/sharp,mcanthony/sharp,mcanthony/sharp,leiyangyou/sharp,cmtt/sharp,leiyangyou/sharp,digital-flowers/sharp-win32,brandonaaron/sharp,kevinsawicki/sharp,papandreou/sharp,papandreou/sharp,papandreou/sharp,papandreou/sharp,mhirsch/sharp,dtest/sharp,digital-flowers/sharp-win32,digital-flowers/sharp-win32,digital-flowers/sharp-win32,kevinsawicki/sharp,chrisriley/sharp,papandreou/sharp,mcanthony/sharp,philip8728/sharp,philip8728/sharp,pporada-gl/sharp,brandonaaron/sharp,mcanthony/sharp,mhirsch/sharp,dtest/sharp,kevinsawicki/sharp,kevinsawicki/sharp,mcanthony/sharp,lovell/sharp,cmtt/sharp,mdimitrov/sharp,cmtt/sharp,dtest/sharp,chrisriley/sharp,lovell/sharp,pporada-gl/sharp,brandonaaron/sharp,lovell/sharp,mdimitrov/sharp,chrisriley/sharp,mdimitrov/sharp,lovell/sharp,lovell/sharp,digital-flowers/sharp-win32,philip8728/sharp,leiyangyou/sharp,leiyangyou/sharp,mdimitrov/sharp,pporada-gl/sharp