core: disable parenthesis remove (break code in most cases)

jadx-core/src/main/java/jadx/core/dex/visitors/PrepareForCodeGen.java

@@ -32,7 +32,7 @@ public class PrepareForCodeGen extends AbstractVisitor {
 		for (BlockNode block : blocks) {
 			removeInstructions(block);
 			checkInline(block);
-			removeParenthesis(block);
+//			removeParenthesis(block);
 			modifyArith(block);
 		}
 	}

jadx-core/src/test/java/jadx/tests/integration/arith/TestArith2.java

@@ -3,8 +3,6 @@ package jadx.tests.integration.arith;
 import jadx.core.dex.nodes.ClassNode;
 import jadx.tests.api.IntegrationTest;
 
-import org.junit.Test;
-
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.hamcrest.CoreMatchers.not;
 import static org.junit.Assert.assertThat;
@@ -22,7 +20,7 @@ public class TestArith2 extends IntegrationTest {
 		}
 	}
 
-	@Test
+	//	@Test
 	public void test() {
 		ClassNode cls = getClassNode(TestCls.class);
 		String code = cls.getCode().toString();