Revert "Clean up stale cache entries in Skia's GrContext (#6859)" (#6866)
Revert "Clean up stale cache entries in Skia's GrContext (#6859)" (#6866)

This reverts commit 2c6be93fa98aeb0dd3c1efa2db201232eb8eefba.
chinmaygarde/sky_engine,rmacnak-google/engine,devoncarew/sky_engine,tvolkert/engine,rmacnak-google/engine,tvolkert/engine,devoncarew/sky_engine,chinmaygarde/sky_engine,aam/engine,jamesr/flutter_engine,jamesr/sky_engine,rmacnak-google/engine,cdotstout/sky_engine,chinmaygarde/flutter_engine,devoncarew/sky_engine,jamesr/flutter_engine,aam/engine,jason-simmons/sky_engine,chinmaygarde/sky_engine,jamesr/sky_engine,cdotstout/sky_engine,Hixie/sky_engine,jamesr/sky_engine,devoncarew/engine,jason-simmons/sky_engine,rmacnak-google/engine,tvolkert/engine,aam/engine,tvolkert/engine,tvolkert/engine,flutter/engine,jason-simmons/flutter_engine,aam/engine,jamesr/flutter_engine,cdotstout/sky_engine,chinmaygarde/sky_engine,aam/engine,aam/engine,devoncarew/engine,devoncarew/engine,jason-simmons/flutter_engine,cdotstout/sky_engine,mikejurka/engine,rmacnak-google/engine,chinmaygarde/sky_engine,jamesr/flutter_engine,mikejurka/engine,jason-simmons/sky_engine,jamesr/sky_engine,jamesr/sky_engine,devoncarew/engine,jason-simmons/flutter_engine,jason-simmons/flutter_engine,mikejurka/engine,Hixie/sky_engine,jamesr/sky_engine,chinmaygarde/flutter_engine,devoncarew/engine,flutter/engine,Hixie/sky_engine,jamesr/flutter_engine,jason-simmons/flutter_engine,mikejurka/engine,jason-simmons/sky_engine,devoncarew/engine,jamesr/flutter_engine,jason-simmons/sky_engine,jamesr/sky_engine,jamesr/flutter_engine,Hixie/sky_engine,tvolkert/engine,Hixie/sky_engine,Hixie/sky_engine,cdotstout/sky_engine,devoncarew/sky_engine,mikejurka/engine,jason-simmons/flutter_engine,flutter/engine,flutter/engine,mikejurka/engine,chinmaygarde/sky_engine,chinmaygarde/sky_engine,Hixie/sky_engine,cdotstout/sky_engine,chinmaygarde/flutter_engine,chinmaygarde/flutter_engine,flutter/engine,devoncarew/sky_engine,cdotstout/sky_engine,jamesr/flutter_engine,aam/engine,mikejurka/engine,flutter/engine,flutter/engine,jason-simmons/sky_engine,devoncarew/sky_engine,rmacnak-google/engine,rmacnak-google/engine,chinmaygarde/flutter_engine,jason-simmons/flutter_engine,devoncarew/engine,mikejurka/engine,aam/engine,flutter/engine,devoncarew/sky_engine,jamesr/flutter_engine,jason-simmons/flutter_engine,chinmaygarde/flutter_engine,Hixie/sky_engine,tvolkert/engine,jason-simmons/sky_engine,mikejurka/engine,chinmaygarde/flutter_engine