ci: no more crazy retry in travis
ci: no more crazy retry in travis

pazos/koreader,houqp/koreader,Frenzie/koreader,Frenzie/koreader,lgeek/koreader,mwoz123/koreader,koreader/koreader,poire-z/koreader,NickSavage/koreader,Hzj-jie/koreader,mihailim/koreader,chihyang/koreader,frankyifei/koreader,poire-z/koreader,NiLuJe/koreader,NiLuJe/koreader,koreader/koreader,apletnev/koreader,Markismus/koreader,robert00s/koreader