RFR: 8280472: Don't mix legacy logging with UL

[Koichi Sakata]

This PR remove extra conditions related to Unified Logging.

Those conditions have been left after the transition to Unified Logging. This is an only place that uses UL, Verbose and WizardMode flags together. This JBS issue suggests to remove those flags.

# Details
At present to output target log messages needs the debug build of OpenJDK and, Verbose or WizardMode option.

$ jdk/build/macosx-aarch64-server-fastdebug/jdk/bin/java -Xlog:methodhandles=info -XX:+Verbose -version
(Omitted)
[0.090s][info][methodhandles] make_method_handle_intrinsic MH.linkToStatic(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object;
[0.090s][info][methodhandles] {method}
[0.090s][info][methodhandles]  - this oop:          0x00000001303d6238
[0.090s][info][methodhandles]  - method holder:     public synchronized abstract 'java/lang/invoke/MethodHandle'
(Omitted)
[0.090s][info][methodhandles]  - signature handler: 0x0000000000000000
[0.090s][info][methodhandles] lookup_polymorphic_method => intrinsic {method}
[0.090s][info][methodhandles]  - this oop:          0x00000001303d6238

Target log messages are from `{method}` to `- signature handler`.


$ jdk/build/macosx-aarch64-server-fastdebug/jdk/bin/java -Xlog:methodhandles=info -version
(Omitted)
[0.134s][info][methodhandles] lookup_polymorphic_method linkToStatic (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object; => basic (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object;
[0.134s][info][methodhandles] make_method_handle_intrinsic MH.linkToStatic(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object;
[0.134s][info][methodhandles] lookup_polymorphic_method => intrinsic {method}
[0.134s][info][methodhandles]  - this oop:          0x000000012abd5e58

When those flags are off, UL doesn't output them. 

# Test
There is no test code for it. So I built and run OpenJDK to confirm log output by myself.

## Run with Log Level DEBUG After Applying This Patch

$ jdk/build/macosx-aarch64-server-fastdebug/jdk/bin/java -Xlog:methodhandles=debug -version
(Omitted)
[0.132s][info][methodhandles] make_method_handle_intrinsic MH.linkToStatic(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object;
[0.132s][debug][methodhandles] {method}
[0.132s][debug][methodhandles]  - this oop:          0x00000001217d6b98
(Omitted)
[0.132s][debug][methodhandles]  - signature handler: 0x0000000000000000
[0.132s][info ][methodhandles] lookup_polymorphic_method => intrinsic {method}
[0.132s][info ][methodhandles]  - this oop:          0x00000001217d6b98

UL outputted target log messages with the debug level. It was successful.

## Run with Log Level INFO After Applying This Patch

$ jdk/build/macosx-aarch64-server-fastdebug/jdk/bin/java -Xlog:methodhandles=info -version
(Omitted)
[0.086s][info][methodhandles] make_method_handle_intrinsic MH.linkToStatic(Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/invoke/MemberName;)Ljava/lang/Object;
[0.086s][info][methodhandles] lookup_polymorphic_method => intrinsic {method}
[0.086s][info][methodhandles]  - this oop:          0x000000011f7d69f8

UL didn't output them. That was as I intended.

-------------

Commit messages:
 - Change the log level
 - Change the log level

Changes: https://git.openjdk.org/jdk/pull/9175/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9175&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280472
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/9175.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9175/head:pull/9175

PR: https://git.openjdk.org/jdk/pull/9175