RFR: JDK-8267930: Refine code for loading hsdis library [v6]

[Hamlin Li]

> code for loading hsdis library is redundant, this is to simplify it.

Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:

  fix wrong argument order

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4260/files
  - new: https://git.openjdk.java.net/jdk/pull/4260/files/698b799b..20ca3a53

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4260&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4260&range=04-05

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4260.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4260/head:pull/4260

PR: https://git.openjdk.java.net/jdk/pull/4260