Fix misplaced return in RescueParty

"Make RescueParty not wipe if checkpointing" contained an incorrect
return statement, causing the last level of RescueParty to not execute
if checkpointing is not active. This fixes that error

Test: setprop persist.sys.enable_rescue 1
      Set device to not commit checkpoints
      adb shell setprop debug.crash_sysui 1
      adb shell stop
      adb shell start
      Rescue Party causes wipe prompt
Bug: 131721345
Change-Id: I9376020355b80a4e830e6884b92ade9ad11dc8ee