remove `Author`, closes #5334
I suppose that you copy-pasted the Russian translations from babel[1] package. Actually, it has two versions — `captionsrussian@ancient` and `captionsrussian@modern`, the former contains translations for the pre-revolution (1918) orthography. [1]: http://ctan.math.utah.edu/ctan/tex-archive/macros/latex/contrib/babel-contrib/russian/russianb.ldf