Revert Stackable Curing Discount

Revert the villager curing discount system to before MC-181190 fix.

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
gradle/wrapper		gradle/wrapper
src/main		src/main
.gitignore		.gitignore
LICENSE.txt		LICENSE.txt
README.md		README.md
build.gradle.kts		build.gradle.kts
gradle.properties		gradle.properties
gradlew		gradlew
gradlew.bat		gradlew.bat
settings.gradle.kts		settings.gradle.kts

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