RFR: 8281049: man page update for jstatd Security Manager dependency removal

[Kevin Walls]

Policy settings are no longer required to run jstatd.

This PR is the change to the source file src/jdk.jstatd/share/man/jstatd.1 and in case that's hard to read, here is a diff of the text as rendered by the man command: https://cr.openjdk.java.net/~kevinw/8281049/jstatd.man.diff.txt

And a copy of the new text rendered by man:
https://cr.openjdk.java.net/~kevinw/8281049/jstatd.man.new.txt

-------------

Commit messages:
 - 8281049: man page update for jstatd Security Manager dependency removal

Changes: https://git.openjdk.java.net/jdk/pull/7320/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7320&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8281049
  Stats: 16 lines in 1 file changed: 0 ins; 3 del; 13 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7320.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7320/head:pull/7320

PR: https://git.openjdk.java.net/jdk/pull/7320