Remove unnecessary python check in loggernet rotate

scripts/loggernet_rotate.sh

@@ -15,14 +15,6 @@ FILE_SUFFIXES="_"
 INPUT_EXT="ascii"
 OUTPUT_EXT="ascii"
 
-assert_python() {
-    python -c "import sys; sys.exit(sys.version_info[0] >= 3)"
-    if [ $? != 0 ]; then
-        errcho "'python' must be version 3"
-        exit 1
-    fi
-}
-
 pause_loggernet() {
     $LOGGERNET_PATH/cora_cmd <<EOF
 connect localhost;
@@ -73,8 +65,6 @@ oops() {
     exit 1
 }
 
-assert_python
-
 if [ $# -eq 1 ]; then
     ARCHIVE_PATH=$1
 else