RFR: 7903167: jextract makefiles still use joptsimple and generated module-info.java

[Athijegannathan Sundararajan]

removed jopt dependency in makefiles as well.

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

Commit messages:
 - 7903167: jextract makefiles still use joptsimple and generated module-info.java

Changes: https://git.openjdk.java.net/jextract/pull/26/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jextract&pr=26&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7903167
  Stats: 35 lines in 1 file changed: 1 ins; 32 del; 2 mod
  Patch: https://git.openjdk.java.net/jextract/pull/26.diff
  Fetch: git fetch https://git.openjdk.java.net/jextract pull/26/head:pull/26

PR: https://git.openjdk.java.net/jextract/pull/26