RFR: 8352510: Don't reset LCMS_CFLAGS

Thu Mar 20 13:20:48 UTC 2025

In [JDK-8329086](https://bugs.openjdk.org/browse/JDK-8329086), when cleaning up the native build for java.desktop, what was likely a bug with LCMS_CFLAGS was found. See the discussion at https://github.com/openjdk/jdk/pull/18486#discussion_r1539179250.

The old behavior was kept to not introduce any changes in that refactoring PR, but now the time has come to clean this up.

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Commit messages:
 - 8352510: Don't reset LCMS_CFLAGS

Changes: https://git.openjdk.org/jdk/pull/24131/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24131&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8352510
  Stats: 2 lines in 1 file changed: 0 ins; 2 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/24131.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24131/head:pull/24131

PR: https://git.openjdk.org/jdk/pull/24131