Temporary build fix
Temporary build fix

Unhook fitness from the build to work around build break in playfair. We
updated the Sky package in an incompatible way, which means we need to roll in
a new playfair package to build fitness.

flutter/engine,abarth/sky_engine,jason-simmons/sky_engine,devoncarew/engine,TribeMedia/sky_engine,cdotstout/sky_engine,xunmengfeng/engine,iansf/sky_engine,aam/engine,jamesr/sky_engine,mdakin/engine,qiankunshe/sky_engine,mxia/engine,mxia/engine,krisgiesing/sky_engine,jason-simmons/sky_engine,iansf/sky_engine,jamesr/flutter_engine,mikejurka/engine,lyceel/engine,mpcomplete/engine,mpcomplete/flutter_engine,cdotstout/sky_engine,tvolkert/engine,devoncarew/sky_engine,mpcomplete/engine,mikejurka/engine,qiankunshe/sky_engine,mxia/engine,chinmaygarde/sky_engine,qiankunshe/sky_engine,iansf/sky_engine,jason-simmons/sky_engine,mxia/engine,cdotstout/sky_engine,flutter/engine,krisgiesing/sky_engine,jamesr/sky_engine,jason-simmons/sky_engine,jamesr/flutter_engine,flutter/engine,devoncarew/sky_engine,afandria/sky_engine,iansf/sky_engine,afandria/sky_engine,tvolkert/engine,jason-simmons/flutter_engine,mpcomplete/flutter_engine,abarth/sky_engine,mxia/engine,mpcomplete/engine,afandria/sky_engine,chinmaygarde/flutter_engine,xunmengfeng/engine,Hixie/sky_engine,chinmaygarde/sky_engine,chinmaygarde/flutter_engine,rmacnak-google/engine,aam/engine,jamesr/flutter_engine,tvolkert/engine,rmacnak-google/engine,abarth/sky_engine,devoncarew/sky_engine,aam/engine,TribeMedia/sky_engine,aam/engine,jamesr/flutter_engine,flutter/engine,mikejurka/engine,mpcomplete/engine,chinmaygarde/flutter_engine,jamesr/flutter_engine,mpcomplete/flutter_engine,TribeMedia/sky_engine,chinmaygarde/flutter_engine,rmacnak-google/engine,lyceel/engine,chinmaygarde/sky_engine,devoncarew/engine,TribeMedia/sky_engine,tvolkert/engine,chinmaygarde/flutter_engine,devoncarew/engine,cdotstout/sky_engine,chinmaygarde/sky_engine,qiankunshe/sky_engine,jason-simmons/sky_engine,abarth/sky_engine,Hixie/sky_engine,mikejurka/engine,krisgiesing/sky_engine,Hixie/sky_engine,qiankunshe/sky_engine,mikejurka/engine,Hixie/sky_engine,TribeMedia/sky_engine,xunmengfeng/engine,krisgiesing/sky_engine,devoncarew/sky_engine,mdakin/engine,devoncarew/sky_engine,chinmaygarde/sky_engine,mpcomplete/engine,devoncarew/engine,cdotstout/sky_engine,jason-simmons/sky_engine,devoncarew/sky_engine,afandria/sky_engine,tvolkert/engine,mdakin/engine,Hixie/sky_engine,Hixie/sky_engine,aam/engine,krisgiesing/sky_engine,abarth/sky_engine,iansf/sky_engine,afandria/sky_engine,aam/engine,qiankunshe/sky_engine,mxia/engine,cdotstout/sky_engine,jason-simmons/flutter_engine,flutter/engine,mpcomplete/engine,rmacnak-google/engine,lyceel/engine,mpcomplete/engine,mdakin/engine,Hixie/sky_engine,xunmengfeng/engine,mikejurka/engine,mdakin/engine,aam/engine,tvolkert/engine,iansf/sky_engine,mpcomplete/flutter_engine,jamesr/flutter_engine,cdotstout/sky_engine,devoncarew/engine,jamesr/sky_engine,afandria/sky_engine,jamesr/sky_engine,chinmaygarde/sky_engine,chinmaygarde/flutter_engine,aam/engine,jason-simmons/flutter_engine,TribeMedia/sky_engine,devoncarew/engine,lyceel/engine,TribeMedia/sky_engine,xunmengfeng/engine,jason-simmons/flutter_engine,xunmengfeng/engine,mikejurka/engine,krisgiesing/sky_engine,mdakin/engine,mdakin/engine,flutter/engine,mpcomplete/engine,iansf/sky_engine,jamesr/sky_engine,jamesr/flutter_engine,lyceel/engine,afandria/sky_engine,jason-simmons/flutter_engine,tvolkert/engine,devoncarew/sky_engine,lyceel/engine,jamesr/sky_engine,TribeMedia/sky_engine,mikejurka/engine,rmacnak-google/engine,mpcomplete/flutter_engine,qiankunshe/sky_engine,jason-simmons/flutter_engine,abarth/sky_engine,flutter/engine,devoncarew/engine,mxia/engine,mdakin/engine,TribeMedia/sky_engine,mxia/engine,jason-simmons/flutter_engine,iansf/sky_engine,qiankunshe/sky_engine,jason-simmons/sky_engine,flutter/engine,jason-simmons/flutter_engine,afandria/sky_engine,lyceel/engine,rmacnak-google/engine,jamesr/flutter_engine,jamesr/sky_engine,abarth/sky_engine,chinmaygarde/flutter_engine,rmacnak-google/engine,Hixie/sky_engine,chinmaygarde/sky_engine,krisgiesing/sky_engine,xunmengfeng/engine,mikejurka/engine,mpcomplete/flutter_engine,jamesr/flutter_engine