Don't use graphic icons for notes, warnings, etc.
Don't use graphic icons for notes, warnings, etc.

Change 30758 [1] fixed a bug with showing graphics in the tutorial,
but also included the icons folder which attempted to provide
graphics for notes, warnings, and other asciidoc sections.  These
graphics are not currently in our repository and there are licensing
concerns with using them.  To simplify things, we are not going to
include graphics for these icons and will keep the previous 2.2.1
behavior.

[1] https://gerrit-review.googlesource.com/#/c/30785/

Change-Id: Ic4132122d8011f4e590d15d5323c0b645835f604
Signed-off-by: Brad Larson <56462208c760d4a5643fe50d4f2fd5cfceef82ff@gmail.com>

basilgor/gerrit,zommarin/gerrit,dwhipstock/gerrit,anminhsu/gerrit,TonyChai24/test,WANdisco/gerrit,1yvT0s/gerrit,Saulis/gerrit,quyixia/gerrit,supriyantomaftuh/gerrit,Team-OctOS/host_gerrit,evanchueng/gerrit,bpollack/gerrit,teamblueridge/gerrit,jackminicloud/test,Distrotech/gerrit,gcoders/gerrit,CandyShop/gerrit,ashang/aaron-gerrit,netroby/gerrit,Seinlin/gerrit,pkdevbox/gerrit,CandyShop/gerrit,bpollack/gerrit,GerritCodeReview/gerrit,bootstraponline-archive/gerrit-mirror,ckamm/gerrit,renchaorevee/gerrit,MerritCR/merrit,Saulis/gerrit,hdost/gerrit,1yvT0s/gerrit,gracefullife/gerrit,Distrotech/gerrit,bootstraponline-archive/gerrit-mirror,keerath/gerrit_newssh,renchaorevee/gerrit,evanchueng/gerrit,gcoders/gerrit,zommarin/gerrit,joshuawilson/merrit,Overruler/gerrit,joshuawilson/merrit,teamblueridge/gerrit,WANdisco/gerrit,midnightradio/gerrit,keerath/gerrit_newssh,gracefullife/gerrit,gerrit-review/gerrit,basilgor/gerrit,Overruler/gerrit,1yvT0s/gerrit,renchaorevee/gerrit,bootstraponline-archive/gerrit-mirror,evanchueng/gerrit,gerrit-review/gerrit,thinkernel/gerrit,hdost/gerrit,midnightradio/gerrit,Saulis/gerrit,thinkernel/gerrit,bpollack/gerrit,qtproject/qtqa-gerrit,anminhsu/gerrit,Seinlin/gerrit,basilgor/gerrit,thesamet/gerrit,gcoders/gerrit,qtproject/qtqa-gerrit,GerritCodeReview/gerrit,quyixia/gerrit,Distrotech/gerrit,hdost/gerrit,basilgor/gerrit,1yvT0s/gerrit,renchaorevee/gerrit,thinkernel/gerrit,renchaorevee/gerrit,m1kah/gerrit-contributions,pkdevbox/gerrit,dwhipstock/gerrit,MerritCR/merrit,WANdisco/gerrit,qtproject/qtqa-gerrit,Overruler/gerrit,gcoders/gerrit,WANdisco/gerrit,MerritCR/merrit,midnightradio/gerrit,ashang/aaron-gerrit,quyixia/gerrit,joshuawilson/merrit,Overruler/gerrit,thesamet/gerrit,netroby/gerrit,pkdevbox/gerrit,supriyantomaftuh/gerrit,joshuawilson/merrit,ashang/aaron-gerrit,joshuawilson/merrit,Distrotech/gerrit,Seinlin/gerrit,atdt/gerrit,joshuawilson/merrit,TonyChai24/test,midnightradio/gerrit,GerritCodeReview/gerrit,qtproject/qtqa-gerrit,Distrotech/gerrit,zommarin/gerrit,gracefullife/gerrit,hdost/gerrit,bootstraponline-archive/gerrit-mirror,m1kah/gerrit-contributions,CandyShop/gerrit,midnightradio/gerrit,thinkernel/gerrit,gerrit-review/gerrit,TonyChai24/test,bootstraponline-archive/gerrit-mirror,thinkernel/gerrit,supriyantomaftuh/gerrit,quyixia/gerrit,MerritCR/merrit,CandyShop/gerrit,Seinlin/gerrit,Team-OctOS/host_gerrit,gracefullife/gerrit,anminhsu/gerrit,CandyShop/gerrit,GerritCodeReview/gerrit,Team-OctOS/host_gerrit,bpollack/gerrit,Team-OctOS/host_gerrit,WANdisco/gerrit,ckamm/gerrit,midnightradio/gerrit,m1kah/gerrit-contributions,netroby/gerrit,pkdevbox/gerrit,teamblueridge/gerrit,Team-OctOS/host_gerrit,Seinlin/gerrit,quyixia/gerrit,GerritCodeReview/gerrit,jackminicloud/test,hdost/gerrit,anminhsu/gerrit,m1kah/gerrit-contributions,hdost/gerrit,basilgor/gerrit,Saulis/gerrit,hdost/gerrit,gcoders/gerrit,anminhsu/gerrit,renchaorevee/gerrit,supriyantomaftuh/gerrit,gcoders/gerrit,qtproject/qtqa-gerrit,evanchueng/gerrit,pkdevbox/gerrit,netroby/gerrit,gcoders/gerrit,supriyantomaftuh/gerrit,ashang/aaron-gerrit,atdt/gerrit,teamblueridge/gerrit,Seinlin/gerrit,ashang/aaron-gerrit,joshuawilson/merrit,keerath/gerrit_newssh,thesamet/gerrit,supriyantomaftuh/gerrit,jackminicloud/test,dwhipstock/gerrit,anminhsu/gerrit,zommarin/gerrit,gracefullife/gerrit,Overruler/gerrit,GerritCodeReview/gerrit,TonyChai24/test,thesamet/gerrit,dwhipstock/gerrit,gerrit-review/gerrit,thesamet/gerrit,GerritCodeReview/gerrit,Distrotech/gerrit,ckamm/gerrit,Seinlin/gerrit,atdt/gerrit,thesamet/gerrit,quyixia/gerrit,bpollack/gerrit,gerrit-review/gerrit,thesamet/gerrit,dwhipstock/gerrit,atdt/gerrit,WANdisco/gerrit,pkdevbox/gerrit,Distrotech/gerrit,joshuawilson/merrit,bootstraponline-archive/gerrit-mirror,supriyantomaftuh/gerrit,evanchueng/gerrit,Team-OctOS/host_gerrit,qtproject/qtqa-gerrit,anminhsu/gerrit,gerrit-review/gerrit,Saulis/gerrit,pkdevbox/gerrit,jackminicloud/test,MerritCR/merrit,teamblueridge/gerrit,MerritCR/merrit,dwhipstock/gerrit,keerath/gerrit_newssh,netroby/gerrit,thinkernel/gerrit,renchaorevee/gerrit,zommarin/gerrit,jackminicloud/test,netroby/gerrit,thinkernel/gerrit,MerritCR/merrit,TonyChai24/test,ckamm/gerrit,quyixia/gerrit,qtproject/qtqa-gerrit,WANdisco/gerrit,Overruler/gerrit,gerrit-review/gerrit,jackminicloud/test,TonyChai24/test,jackminicloud/test,MerritCR/merrit,dwhipstock/gerrit,Saulis/gerrit,netroby/gerrit,bpollack/gerrit,1yvT0s/gerrit,GerritCodeReview/gerrit,ckamm/gerrit,TonyChai24/test,atdt/gerrit,keerath/gerrit_newssh,Team-OctOS/host_gerrit