replace rremove with rm, because rremove is not reliable

lizardfs/lizardfs-snapshots.sh

@@ -111,7 +111,8 @@ for src in "${SOURCES[@]}"; do
         echo " " "lizardfs makesnapshot -lf '${src}' '${DESTINATION}/${target}${date}'"
         if test -n "$del"; then
             for f in $(ls -d1 "${DESTINATION}/${target}"-* | sort -r | tail -n +"$del"); do
-                echo " " "lizardfs rremove -l '$f'"
+                #echo " " "lizardfs rremove -l '$f'"
+                echo " " "rm -rf --one-filesystem '$f'"
             done
 	fi
     else
@@ -119,7 +120,8 @@ for src in "${SOURCES[@]}"; do
         lizardfs makesnapshot -lf "${src}" "${DESTINATION}/${target}${date}"
         if test -n "$del"; then
             for f in $(ls -d1 "${DESTINATION}/${target}"-* | sort -r | tail -n +"$del"); do
-                lizardfs rremove -l "$f"
+                #lizardfs rremove -l "$f"
+                test -d "$f" && rm -rf --one-filesystem "$f"
             done
         fi
     fi