Run spotless

Author: lriggs

gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/FunctionSignature.java

@@ -18,7 +18,6 @@
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Objects;
-
 import java.util.List;
 import org.apache.arrow.vector.types.pojo.ArrowType;
 

gandiva/src/main/java/org/apache/arrow/gandiva/evaluator/JniLoader.java

@@ -31,9 +31,6 @@
 import java.util.concurrent.ConcurrentMap;
 import org.apache.arrow.gandiva.exceptions.GandivaException;
 
-import com.sun.jna.Library;
-import com.sun.jna.NativeLibrary;
-
 /** This class handles loading of the jni library, and acts as a bridge for the native functions. */
 class JniLoader {
   private static final String LIBRARY_NAME = "gandiva_jni";

gandiva/src/main/java/org/apache/arrow/gandiva/expression/FunctionNode.java

@@ -17,7 +17,6 @@
 package org.apache.arrow.gandiva.expression;
 
 import java.util.List;
-
 import org.apache.arrow.gandiva.exceptions.GandivaException;
 import org.apache.arrow.gandiva.ipc.GandivaTypes;
 import org.apache.arrow.vector.types.pojo.ArrowType;