RFR: 8300488: Incorrect usage of CATCH_BAD_ALLOC as a macro call

[Julian Waters]

`CATCH_BAD_ALLOC` is a regular macro that does not take any parameters, awt_TrayIcon should not use it as a macro function as such

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Commit messages:
 - Remove NULL argument from CATCH_BAD_ALLOC

Changes: https://git.openjdk.org/jdk/pull/12067/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12067&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8300488
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/12067.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12067/head:pull/12067

PR: https://git.openjdk.org/jdk/pull/12067