test: modify case of sync

tests/script/tsim/sync/threeReplica1VgElect.sim

@@ -220,7 +220,6 @@ if $data[0][4] == LEADER then
   print ---- vgroup $data[0][0] leader switch to dnode $data[0][3]
 elif $data[0][6] == LEADER then
   print ---- vgroup $data[0][0] leader switch to dnode $data[0][5]
-endi
 elif $data[0][8] == LEADER then
   print ---- vgroup $data[0][0] leader switch to dnode $data[0][7]
 else 
@@ -342,7 +341,6 @@ elif $data[0][6] == LEADER then
     goto check_vg_ready_3
   endi
   print ---- vgroup $data[0][0] leader locating dnode $data[0][7]
-endi
 elif $data[0][8] == LEADER then
   if $data[0][4] == LEADER then
     goto check_vg_ready_3

tests/script/tsim/sync/threeReplica1VgElectWihtInsert.sim

@@ -420,7 +420,6 @@ elif $data[0][6] == LEADER then
     goto check_vg_ready_3
   endi
   print ---- vgroup $data[0][0] leader locating dnode $data[0][7]
-endi
 elif $data[0][8] == LEADER then
   if $data[0][4] == LEADER then
     goto check_vg_ready_3