Remove clirr workaround

The workaround that was previously required to make clirr happy
now seems to make it unhappy instead. Removing the workaround
results in another clirr issue that I added to ignore list.

clirr-ignores.xml

@@ -403,4 +403,10 @@
         <to>*com.datastax.driver.core.EndPoint*</to>
         <justification>JAVA-2355: Abstract connection information into new EndPoint type for sni support</justification>
     </difference>
+    <difference>
+        <differenceType>7002</differenceType> <!-- method removed -->
+        <className>com/datastax/driver/core/ResultSet</className>
+        <method>*one*</method>
+        <justification>False positive. Method is still present in parent interface (and was only introduced in ResultSet as a workaround for another clirr false positive)</justification>
+    </difference>
 </differences>

driver-core/src/main/java/com/datastax/driver/core/ResultSet.java

@@ -33,10 +33,6 @@
  */
 public interface ResultSet extends PagingIterable<ResultSet, Row> {
 
-  // redeclared only to make clirr happy
-  @Override
-  Row one();
-
   /**
    * Returns the columns returned in this ResultSet.
    *