RFR: 8172956: JDK9 msg drop 30 L10n resource update

[Leo Jiang]

Hi,

Please review
Webrev:
http://cr.openjdk.java.net/~ljiang/MsgDrop-8172956/webrev.00/

for bug:
https://bugs.openjdk.java.net/browse/JDK-8172956

Jaxp:
Only few lines updated. In most of files in jaxp repo, we removed the counterpart of useless comment lines already 
removed from English resource.

Jdk:
update the l10n resource files to match the changes in English.

Langtools:
Similar to jdk repo, but have new localized files for jdeprscan tool.


Please help us to review
  - over-translate, e.g. keywords should be not translated
  - not-translate, e.g. some sentences or strings are not translated while they should be.
  - any programming syntax error
  - the position of placefolder after translation
  - any other issues.

Thanks,
Leo