fixes according to Cadacy

Author: vcmboot

src/itest/java/com/sybit/airtable/TableSelectJacksonOMTest.java

@@ -135,7 +135,7 @@ public void testSelectNonExistingExceptionMessageTable() throws HttpResponseExce
 
         String message;
         try {
-            List<Movie> retval = base.table("NotExists", Movie.class).select();
+            base.table("NotExists", Movie.class).select();
             message = "Success";
         } catch (AirtableException e) {
             message = e.getMessage();

src/itest/java/com/sybit/airtable/TableSelectTest.java

@@ -84,7 +84,7 @@ public void testSelectNonExistingTableExceptionMessage() throws HttpResponseExce
 
         String message;
         try {
-            List<Movie> retval = base.table("NotExists", Movie.class).select();
+            base.table("NotExists", Movie.class).select();
             message = "Success";
         } catch (AirtableException e) {
             message = e.getMessage();