Revert "Add local decorating support for adding linking metadata when using Log4j2 JsonLayout"

[jasonjkeller]

Reverts #1472

There are some weave violations that need to be addressed:

ReferenceViolation{type=MISSING_ORIGINAL_BYTECODE, weaveClass=org/apache/logging/log4j/core/LogEvent, originalClass=org/apache/logging/log4j/core/time/Instant, violationMessage=Could not find resource}

ReferenceViolation{type=MISSING_ORIGINAL_BYTECODE, weaveClass=org/apache/logging/log4j/core/LogEvent, originalClass=org/apache/logging/log4j/util/ReadOnlyStringMap, violationMessage=Could not find resource}

WeaveViolation{type=METHOD_NEW_ABSTRACT_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=toImmutable()Lorg/apache/logging/log4j/core/LogEvent;}

WeaveViolation{type=METHOD_NEW_NON_PRIVATE_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=toImmutable()Lorg/apache/logging/log4j/core/LogEvent;}

WeaveViolation{type=METHOD_NEW_ABSTRACT_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=getContextData()Lorg/apache/logging/log4j/util/ReadOnlyStringMap;}

WeaveViolation{type=METHOD_NEW_NON_PRIVATE_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=getContextData()Lorg/apache/logging/log4j/util/ReadOnlyStringMap;}

WeaveViolation{type=METHOD_NEW_ABSTRACT_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=getInstant()Lorg/apache/logging/log4j/core/time/Instant;}

WeaveViolation{type=METHOD_NEW_NON_PRIVATE_UNSUPPORTED, clazz=org/apache/logging/log4j/core/LogEvent, method=getInstant()Lorg/apache/logging/log4j/core/time/Instant;}

log4j-core_2.6
log4j-core_2.6.1
log4j-core_2.6.2
log4j-core_2.7
log4j-core_2.8
log4j-core_2.8.1
log4j-core_2.8.2
log4j-core_2.9.0
log4j-core_2.9.1
log4j-core_2.10.0