Revert "make state in KotlinRootNpmResolverStateHolder public"

This reverts commit 65f712ab2d54e34c5b02ffa3ca8c659740277133.
diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/resolver/KotlinRootNpmResolverStateHolder.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/resolver/KotlinRootNpmResolverStateHolder.kt
index 09e58dd..1d622090 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/resolver/KotlinRootNpmResolverStateHolder.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/npm/resolver/KotlinRootNpmResolverStateHolder.kt
@@ -19,7 +19,7 @@
 import org.jetbrains.kotlin.gradle.targets.js.yarn.YarnResolution
 
 // We use this service as a single storage for duplicated data in configuration cache
-public abstract class KotlinRootNpmResolverStateHolder : BuildService<KotlinRootNpmResolverStateHolder.Parameters> {
+internal abstract class KotlinRootNpmResolverStateHolder : BuildService<KotlinRootNpmResolverStateHolder.Parameters> {
     interface Parameters : BuildServiceParameters {
         val plugins: ListProperty<RootResolverPlugin>
         val projectResolvers: MapProperty<String, KotlinProjectNpmResolver>
@@ -36,5 +36,5 @@
     var initialized = false
 
     @Volatile
-    public var state = KotlinRootNpmResolver.State.CONFIGURING
-}
+    var state = KotlinRootNpmResolver.State.CONFIGURING
+}
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