all: replace Div/Mul with Rsh/Lsh if possible #29911#1966

AnilChinchawale merged 1 commit intoXinFinOrg:dev-upgradeXinFinOrg/XDPoSChain:dev-upgradefrom

gzliudan:big-int-use-shiftgzliudan/XDPoSChain:big-int-use-shiftCopy head branch name to clipboard