Fix Power Loss Recovery file delete (#13522)

Marlin/src/feature/power_loss_recovery.cpp

   open(false);
   file.seekSet(0);
   const int16_t ret = file.write(&info, sizeof(info));
+  close();
+
   #if ENABLED(DEBUG_POWER_LOSS_RECOVERY)
     if (ret == -1) SERIAL_ECHOLNPGM("Power-loss file write failed.");
   #else

Marlin/src/gcode/feature/powerloss/M413.cpp

     if (parser.seen('R') || parser.seen('L')) recovery.load();
     if (parser.seen('W')) recovery.save(true);
     if (parser.seen('P')) recovery.purge();
-    if (parser.seen('E')) serialprintPGM(recovery.exists() ? PSTR("BIN Exists\n") : PSTR("No BIN\n"));
+    if (parser.seen('E')) serialprintPGM(recovery.exists() ? PSTR("PLR Exists\n") : PSTR("No PLR\n"));
     if (parser.seen('V')) serialprintPGM(recovery.valid() ? PSTR("Valid\n") : PSTR("Invalid\n"));
   #endif
 }

Marlin/src/sd/cardreader.cpp

 
 #if ENABLED(POWER_LOSS_RECOVERY)
 
-  constexpr char job_recovery_file_name[4] = "BIN";
+  constexpr char job_recovery_file_name[4] = "PLR";
 
   bool CardReader::jobRecoverFileExists() {
     const bool exists = recovery.file.open(&root, job_recovery_file_name, O_READ);
   // be zeroed and written instead of deleted.
   void CardReader::removeJobRecoveryFile() {
     if (jobRecoverFileExists()) {
-      //closefile();
       removeFile(job_recovery_file_name);
       #if ENABLED(DEBUG_POWER_LOSS_RECOVERY)
         SERIAL_ECHOPGM("Power-loss file delete");