[K/N][build] Remove obsolete kotlin-native-shared project

This project was replaced by the :native:kotlin-native-utils located at
native/utils. All sources were already merged.


Merge-request: KT-MR-11847
Merged-by: Pavel Punegov <Pavel.Punegov@jetbrains.com>

settings.gradle

@@ -861,6 +861,4 @@ if (buildProperties.isKotlinNativeEnabled) {
     include ':kotlin-native:backend.native:tests'
     include ":kotlin-native-compiler-embeddable"
     project(":kotlin-native-compiler-embeddable").projectDir = "$rootDir/kotlin-native/prepare/kotlin-native-embeddable-compiler" as File
-    include ':kotlin-native-shared'
-    project(":kotlin-native-shared").projectDir = "$rootDir/kotlin-native/shared" as File
 }