RFR: 8368693: Duplicate methods in vmClasses [v2]

[Ashutosh Mehra]

> This patch removes some duplicate methods that check if a class is loaded in vmClasses. These methods are already present in the class (generated by the `_VM_CLASS_DECLARE` macro).

Ashutosh Mehra has updated the pull request incrementally with one additional commit since the last revision:

  Update comment
  
  Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27503/files
  - new: https://git.openjdk.org/jdk/pull/27503/files/619d75a8..567313f0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27503&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27503&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27503.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27503/head:pull/27503

PR: https://git.openjdk.org/jdk/pull/27503