8005582: java/lang/Runtime/exec/WinCommand.java intermittent test failures

Summary: Remove file-deletion code at cleanup which conflicts with jtreg cleanup
Reviewed-by: chegar

test/java/lang/Runtime/exec/WinCommand.java

@@ -135,24 +135,19 @@ public class WinCommand {
 
         // Win9x systems don't have a cmd.exe
         if (new File(systemDirW, "cmd.exe").exists()) {
-            try {
-                out.println("Running cmd.exe tests...");
-                writeFile("cdcmd.cmd", "@echo off\r\nCD\r\n");
-                writeFile("cdbat.bat", "@echo off\r\nCD\r\n");
-                checkCD("cmd",
-                        "cmd.exe",
-                        systemDirW + "\\cmd.exe",
-                        // Only the ".exe" extension can be omitted
-                        systemDirW + "\\cmd",
-                        systemDirM + "/cmd.exe",
-                        systemDirM + "/cmd",
-                        "/" + systemDirM + "/cmd",
-                        "cdcmd.cmd", "./cdcmd.cmd", ".\\cdcmd.cmd",
-                        "cdbat.bat", "./cdbat.bat", ".\\cdbat.bat");
-            } finally {
-                new File("cdcmd.cmd").delete();
-                new File("cdbat.bat").delete();
-            }
+            out.println("Running cmd.exe tests...");
+            writeFile("cdcmd.cmd", "@echo off\r\nCD\r\n");
+            writeFile("cdbat.bat", "@echo off\r\nCD\r\n");
+            checkCD("cmd",
+                    "cmd.exe",
+                    systemDirW + "\\cmd.exe",
+                    // Only the ".exe" extension can be omitted
+                    systemDirW + "\\cmd",
+                    systemDirM + "/cmd.exe",
+                    systemDirM + "/cmd",
+                    "/" + systemDirM + "/cmd",
+                    "cdcmd.cmd", "./cdcmd.cmd", ".\\cdcmd.cmd",
+                    "cdbat.bat", "./cdbat.bat", ".\\cdbat.bat");
         }
 
         // 16-bit apps like command.com must have a console;