Please drop obsolete patches

[Vladimir Petko]

Please drop following patches:
- workaround_expand_exec_shield_cs_limit.diff
This patch enables code in workaround_expand_exec_shield_cs_limit() for IA32 and not Zero VM: '#if defined(IA32) && !defined(ZERO)'
workaround_expand_exec_shield_cs_limit() is called from src/hotspot/os/linux/os_linux.cpp:5515 which already has `#if defined(IA32) && !defined(ZERO)`
Notice, that Hotspot-disable-exec-shield-workaround.diff fully disables this method, making the patch obsolete.

- Generated-headers.patch
This patch adds include path -I/<<PKGBUILDDIR>>/build/support/headers/java.desktop which is already added by the build

- Parallel-build-fix.diff
This patch updates make/hotspot/gensrc/GensrcJfr.gmk to include target directory for generated JNI includes for BUILD_JFR_TOOLS.
The tool is built from make/src/classes/GenerateJfrFiles which does not contain any native methods.
The added path is unnecessary.

[Launchpad Janitor (janitor)]

This bug was fixed in the package openjdk-20 - 20~36ea~us1-0ubuntu2

---------------
openjdk-20 (20~36ea~us1-0ubuntu2) lunar; urgency=medium

  * d/p: drop obsolete patches (LP: #2011653).
    - generated-headers.patch: include is already added by openjdk makefile.
  * d/rules: use --with-debug-symbols=none (LP: #2003820).

 -- Vladimir Petko <email address hidden> Thu, 16 Mar 2023 16:59:11 +1300

[Launchpad Janitor (janitor)]

This bug was fixed in the package openjdk-17 - 17.0.6+10-1ubuntu2

---------------
openjdk-17 (17.0.6+10-1ubuntu2) lunar; urgency=medium

  * d/p: drop obsolete patches (LP: #2011653).
    - workaround_expand_exec_shield_cs_limit.diff: obsoleted by
      hotspot-disable-exec-shield-workaround.diff.
    - generated-headers.patch: include is already added by openjdk makefile.
  * d/copyright, d/watch: implement uscan repackaging (LP: #2011749).
  * d/rules: use --with-debug-symbols=none (LP: #2003820).

 -- Vladimir Petko <email address hidden> Thu, 16 Mar 2023 15:04:36 +1300

[Launchpad Janitor (janitor)]

This bug was fixed in the package openjdk-lts - 11.0.18+10-0ubuntu4

---------------
openjdk-lts (11.0.18+10-0ubuntu4) lunar; urgency=medium

  * d/p: drop obsolete patches (LP: #2011653).
    - workaround_expand_exec_shield_cs_limit.diff: obsoleted by
      hotspot-disable-exec-shield-workaround.diff.
    - generated-headers.patch: include is already added by openjdk makefile.
    - parallel-build-fix.diff: include is not necessary.
  * d/copyright, d/watch: implement uscan repackaging (LP: #2011749).
  * d/rules: use --with-debug-symbols=none (LP: #2003820).

 -- Vladimir Petko <email address hidden> Thu, 16 Mar 2023 08:39:50 +1300