Revert "Add UpperCamelCase EnumNamingStrategy (#4660)" (#4665)

This reverts commit 5bf17d9.

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -1823,7 +1823,3 @@ Eduard Gomoliako (Gems@github)
  * Reported #4602: Possible wrong use of _arrayDelegateDeserializer in
    BeanDeserializerBase::deserializeFromObjectUsingNonDefault()
   (2.18.0)
-
-Lars Benedetto (lbenedetto@github)
- * Contributed #4663: Add `UpperCamelCase` naming strategy to `EnumNamingStrategies`
-  (2.18.0)

release-notes/VERSION-2.x

@@ -68,8 +68,6 @@ Project: jackson-databind
 #4634: `@JsonAnySetter` not working when annotated on both constructor
   parameter & field
  (contributed by Sim Y-T)
-#4663: Add `UpperCamelCase` naming strategy to `EnumNamingStrategies`
- (contributed by Lars B)
 
 2.17.2 (05-Jul-2024)