- rename dwFeeds and dwMutex to pdwFeeds and pdwMutex since they are   pointers - add a check to avoid removing an aleady removed driver (closes bug   [ #300684 ] pcscd segfaults on 'if (*sContext->dwMutex == 1)')
- rename dwFeeds and dwMutex to pdwFeeds and pdwMutex since they are
  pointers
- add a check to avoid removing an aleady removed driver (closes bug
  [ #300684 ] pcscd segfaults on 'if (*sContext->dwMutex == 1)')


git-svn-id: f2d781e409b7e36a714fc884bb9b2fc5091ddd28@823 0ce88b0d-b2fd-0310-8134-9614164e65ea

vicamo/pcsc-lite-android,vicamo/pcsc-lite-android,vicamo/pcsc-lite-android,vicamo/pcsc-lite-android,vicamo/pcsc-lite-android