remove duplicate of seaborn from req'd pkgs [ci disable examples]
remove duplicate of seaborn from req'd pkgs [ci disable examples]

[ci disable examples]

remove second instance of seaborn in list of required packages.

ptitjano/bokeh,msarahan/bokeh,Karel-van-de-Plassche/bokeh,bokeh/bokeh,azjps/bokeh,aavanian/bokeh,rs2/bokeh,rs2/bokeh,dennisobrien/bokeh,dennisobrien/bokeh,timsnyder/bokeh,stonebig/bokeh,DuCorey/bokeh,Karel-van-de-Plassche/bokeh,percyfal/bokeh,DuCorey/bokeh,msarahan/bokeh,aiguofer/bokeh,azjps/bokeh,percyfal/bokeh,stonebig/bokeh,phobson/bokeh,timsnyder/bokeh,KasperPRasmussen/bokeh,ericmjl/bokeh,DuCorey/bokeh,philippjfr/bokeh,DuCorey/bokeh,clairetang6/bokeh,dennisobrien/bokeh,DuCorey/bokeh,rs2/bokeh,bokeh/bokeh,quasiben/bokeh,msarahan/bokeh,justacec/bokeh,jakirkham/bokeh,jakirkham/bokeh,draperjames/bokeh,aavanian/bokeh,aiguofer/bokeh,clairetang6/bokeh,ericmjl/bokeh,ericmjl/bokeh,timsnyder/bokeh,schoolie/bokeh,KasperPRasmussen/bokeh,draperjames/bokeh,timsnyder/bokeh,philippjfr/bokeh,percyfal/bokeh,rs2/bokeh,phobson/bokeh,ericmjl/bokeh,percyfal/bokeh,justacec/bokeh,ptitjano/bokeh,msarahan/bokeh,azjps/bokeh,draperjames/bokeh,bokeh/bokeh,aavanian/bokeh,azjps/bokeh,schoolie/bokeh,phobson/bokeh,mindriot101/bokeh,KasperPRasmussen/bokeh,jakirkham/bokeh,aavanian/bokeh,KasperPRasmussen/bokeh,clairetang6/bokeh,quasiben/bokeh,philippjfr/bokeh,schoolie/bokeh,justacec/bokeh,bokeh/bokeh,ptitjano/bokeh,draperjames/bokeh,draperjames/bokeh,mindriot101/bokeh,aiguofer/bokeh,aiguofer/bokeh,ericmjl/bokeh,justacec/bokeh,KasperPRasmussen/bokeh,phobson/bokeh,azjps/bokeh,Karel-van-de-Plassche/bokeh,jakirkham/bokeh,schoolie/bokeh,clairetang6/bokeh,mindriot101/bokeh,stonebig/bokeh,aiguofer/bokeh,percyfal/bokeh,jakirkham/bokeh,aavanian/bokeh,mindriot101/bokeh,stonebig/bokeh,Karel-van-de-Plassche/bokeh,ptitjano/bokeh,ptitjano/bokeh,phobson/bokeh,rs2/bokeh,schoolie/bokeh,philippjfr/bokeh,dennisobrien/bokeh,timsnyder/bokeh,quasiben/bokeh,dennisobrien/bokeh,Karel-van-de-Plassche/bokeh,philippjfr/bokeh,bokeh/bokeh