Remove unnecessary generics

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/csv/trunk@1518974 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/csv/Assertions.java

@@ -28,7 +28,7 @@ final class Assertions {
         // can not be instantiated
     }
 
-    public static <T> void notNull(T parameter, String parameterName) {
+    public static void notNull(Object parameter, String parameterName) {
         if (parameter == null) {
             throw new IllegalArgumentException("Parameter '" + parameterName + "' must not be null!");
         }