C#: Add ConstantConditionBad file.

Author: michaelnebel

csharp/ql/test/query-tests/Bad Practices/Control-Flow/ConstantCondition/ConstantConditionBad.cs

@@ -0,0 +1,7 @@
+class Bad
+{
+    public int Max(int a, int b)
+    {
+        return a > a ? a : b; // $ Alert
+    }
+}

csharp/ql/test/query-tests/Bad Practices/Control-Flow/ConstantCondition/ConstantIfCondition.cs

@@ -25,11 +25,6 @@ public void Foo()
             }
         }
 
-        public int Max(int a, int b)
-        {
-            return a > a ? a : b; // $ Alert
-        }
-
         public int Bar()
         {
             return ZERO;