It has been reported that recently the body of the Sahaabi, Hujr Ibn Adi was exhumed in Syria.

Answer

Firstly, there is no certitude that Hujr Ibn Adi (radhiyallahu anhu) was a Sahaabi. According to some he was a Taabi-ee. Secondly, there is no certainty that it was his grave. It could have been the grave of any person recently killed in the violence. This is a stronger probability. Don't trust internet stories. Thirdly, even if the body is that of Hujur Ibn Adi (radhiyallahu anhu), and even if his beard is short, so what? How can a short beard on a dubious dead body cancel or abrogate the 14 century Law of the Shariah? Fourthly, What if the body of that Sahaabi is found, who had no beard? Will it then be concluded that Rasulullah (sallallahu alayhi wasallam), the 124,000 Sahaabah and the millions of Muslims through the long history of Islam were all stupid and did not know the Law of the Shariah, and that some morons of this age whose staple food is carrion has understood from a dubious dead body that according to Islam it is permissible to trim/shave the beard. The answer for such morons is nothing but silence.