[generate_dump] Fix for empty /dump folder

Signed-off-by: vadymhlushko-mlnx <[email protected]>

scripts/generate_dump

@@ -276,8 +276,7 @@ save_to_tar() {
     local start_t=$(date +%s%3N)
     local end_t=0
 
-    cd $DUMPDIR
-    $TAR $V -rhf $TARFILE "$BASE"
+    $TAR $V -rhf $TARFILE -C $DUMPDIR "$BASE"
 
     end_t=$(date +%s%3N)
     echo "[ save_to_tar ] : $(($end_t-$start_t)) msec" >> $TECHSUPPORT_TIME_INFO
@@ -1683,10 +1682,6 @@ main() {
     # 2nd counter snapshot late. Need 2 snapshots to make sense of counters trend.
     save_counter_snapshot $asic 2
 
-    $RM $V -rf $TARDIR
-    $MKDIR $V -p $TARDIR
-    $MKDIR $V -p $LOGDIR
-
     # Copying the /etc files to a directory and then tar it
     $CP -r /etc $TARDIR/etc
     rm_list=$(find -L $TARDIR/etc -maxdepth 5 -type l)