[8] Request for Review: 8026233: test/sun/security/tools/keytool/StorePasswords.java needs to clean up files

[Jason Uh]

Hi Vinnie,

Could you please review this fix? The test 
sun/security/tools/keytool/StorePasswords.java can terminate with an 
error on Windows because of files not getting cleaned up, so this fix 
deletes the keystore file at the end of the test.

webrev: http://cr.openjdk.java.net/~juh/8026233/webrev.00/

Thanks,
Jason