removed todo test and updated unused imports

Author: Jolanrensen

examples/src/main/kotlin/org/jetbrains/kotlinx/spark/examples/Broadcasting.kt

@@ -21,7 +21,6 @@ package org.jetbrains.kotlinx.spark.examples
 
 import org.jetbrains.kotlinx.spark.api.broadcast
 import org.jetbrains.kotlinx.spark.api.map
-import org.jetbrains.kotlinx.spark.api.sparkContext
 import org.jetbrains.kotlinx.spark.api.withSpark
 import java.io.Serializable
 

examples/src/main/kotlin/org/jetbrains/kotlinx/spark/examples/Main.kt

@@ -19,13 +19,14 @@
  */
 package org.jetbrains.kotlinx.spark.examples
 
-import org.apache.spark.api.java.function.ReduceFunction
 import org.apache.spark.sql.Dataset
 import org.jetbrains.kotlinx.spark.api.*
 import org.jetbrains.kotlinx.spark.api.tuples.*
-import scala.*
+import scala.Tuple2
+import scala.Tuple3
 
 data class Q<T>(val id: Int, val text: T)
+
 @Suppress("RedundantLambdaArrow", "UsePropertyAccessSyntax")
 object Main {
 

kotlin-spark-api/3.2/src/main/kotlin/org/jetbrains/kotlinx/spark/api/Conversions.kt

@@ -78,20 +78,6 @@ fun <T> T?.toOptional(): Optional<T> = Optional.ofNullable(this)
 /** Converts Java [Optional] to Scala [Option]. */
 fun <T> Optional<T>.toOption(): Option<T> = Option.apply(getOrNull())
 
-/**
- * TODO test
- * Produces a ClassTag[T], which is actually just a casted ClassTag[AnyRef].
- *
- * This method is used to keep ClassTags out of the external Java API, as the Java compiler
- * cannot produce them automatically. While this ClassTag-faking does please the compiler,
- * it can cause problems at runtime if the Scala API relies on ClassTags for correctness.
- *
- * Often, though, a ClassTag[AnyRef] will not lead to incorrect behavior, just worse performance
- * or security issues. For instance, an Array[AnyRef] can hold any type T, but may lose primitive
- * specialization.
- */
-fun <T> fakeClassTag(): ClassTag<T> = ClassTag.AnyRef() as ClassTag<T>
-
 /**
  * @see JavaConverters.asScalaIterator for more information.
  */