Polish.

Author: traceyyoshima

src/main/java/org/openrewrite/kotlin/cleanup/UnnecessaryTypeParentheses.java

@@ -20,8 +20,6 @@
 import org.openrewrite.TreeVisitor;
 import org.openrewrite.java.tree.*;
 import org.openrewrite.kotlin.KotlinVisitor;
-import org.openrewrite.kotlin.internal.PsiTreePrinter;
-import org.openrewrite.kotlin.tree.K;
 
 import java.time.Duration;