RFR: 8198666: Many java/awt/Modal/OnTop/ test fails on mac

[Alisen Chung]

Removed passing tests from problem list

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Commit messages:
 - removed other tests from problem list
 - removed tests from ProblemList

Changes: https://git.openjdk.java.net/jdk/pull/8368/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8368&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8198666
  Stats: 30 lines in 1 file changed: 0 ins; 30 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8368.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8368/head:pull/8368

PR: https://git.openjdk.java.net/jdk/pull/8368