RFR: JEP 367: Remove the Pack200 Tools and API

[Vicente Romero]

Hi,

I need a reviewer for the changes to remove pack200 and unpack200 from 
the JDK. The webrev with the removal is at [1]. This patch is the 
"implementation" of JEP 367 [2]. The patch is basically removing the 
Pack200 related APIs plus its implementation plus any reference to it in 
other tools like `jar`. In the case of `jar`, Pack200 was only used if 
the `-n` flag was passed to the tool. I have removed the code that was 
executed when that flag was passed. I have also removed all the tests 
for Pack200.

Thanks,
Vicente

[1] http://cr.openjdk.java.net/~vromero/8234542/webrev.00/
[2] https://bugs.openjdk.java.net/browse/JDK-8232022