No. Knock them all down. Having a statue of a Soviet General would be the same as having a statue of Rommel up.
Not a fair comparison, and yet also, sneering Rommel merely for being a General in the Wehrmacht is like sneering Lee for being a General for the Confederacy... Rommel was no Nazi, he even tried to kill Hitler. Military commanders are all to often divorced from the ideology of the nations/governments they serve...