Update Checkstyle to version 8.44, remove parentheses (#219)

Author: fsteeg

build.gradle

@@ -77,7 +77,7 @@ subprojects {
   }
 
   checkstyle {
-    toolVersion '8.30'
+    toolVersion '8.44'
   }
 
   tasks.withType(JavaCompile) {

metafix/src/main/java/org/metafacture/metafix/Metafix.java

@@ -200,7 +200,7 @@ public void endRecord() {
 
     private void emit(final String field, final Value value) {
         Value.asList(value, array -> {
-            final boolean isMulti = (repeatedFieldsToEntities && array.size() > 1) || isArrayName(field); // checkstyle-disable-line UnnecessaryParentheses
+            final boolean isMulti = repeatedFieldsToEntities && array.size() > 1 || isArrayName(field);
             if (isMulti) {
                 outputStreamReceiver.startEntity(field);
             }